diff --git a/CHANGELOG.md b/CHANGELOG.md
index cbcdfc261..f6100bc23 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,11 +1,18 @@
 # CHANGELOG
 
+## 8.0.4 Nov 30, 2021
+
+Changes:
+
+- Adjust `stringCamelCase` with leading `_`
+
+
 ## 8.0.3 Nov 30, 2021
 
 Changes:
 
 - Remove `Buffer` usage in `x-randomvalues`
-- Adjust `stringCaleCase` for all-caps parts
+- Adjust `stringCamelCase` for all-caps parts
 
 
 ## 8.0.2 Nov 26, 2021
diff --git a/package.json b/package.json
index ea411e2c0..468fd7196 100644
--- a/package.json
+++ b/package.json
@@ -10,7 +10,7 @@
     "url": "https://github.com/polkadot-js/common.git"
   },
   "sideEffects": false,
-  "version": "8.0.3",
+  "version": "8.0.4",
   "workspaces": [
     "packages/*"
   ],
diff --git a/packages/hw-ledger-transports/package.json b/packages/hw-ledger-transports/package.json
index fe4a70de4..ffd82edbd 100644
--- a/packages/hw-ledger-transports/package.json
+++ b/packages/hw-ledger-transports/package.json
@@ -16,7 +16,7 @@
   },
   "sideEffects": false,
   "type": "module",
-  "version": "8.0.3",
+  "version": "8.0.4",
   "browser": "browser.js",
   "main": "node.js",
   "react-native": "react-native.js",
diff --git a/packages/hw-ledger/package.json b/packages/hw-ledger/package.json
index b572efddd..e24fd08bb 100644
--- a/packages/hw-ledger/package.json
+++ b/packages/hw-ledger/package.json
@@ -19,12 +19,12 @@
     "./detectPackage.cjs"
   ],
   "type": "module",
-  "version": "8.0.3",
+  "version": "8.0.4",
   "main": "index.js",
   "dependencies": {
     "@babel/runtime": "^7.16.3",
-    "@polkadot/hw-ledger-transports": "8.0.3",
-    "@polkadot/util": "8.0.3",
+    "@polkadot/hw-ledger-transports": "8.0.4",
+    "@polkadot/util": "8.0.4",
     "@zondax/ledger-substrate": "^0.18.0"
   }
 }
diff --git a/packages/keyring/package.json b/packages/keyring/package.json
index f6cc66fd4..5a9e6bcd2 100644
--- a/packages/keyring/package.json
+++ b/packages/keyring/package.json
@@ -20,15 +20,15 @@
     "./detectPackage.cjs"
   ],
   "type": "module",
-  "version": "8.0.3",
+  "version": "8.0.4",
   "main": "index.js",
   "dependencies": {
     "@babel/runtime": "^7.16.3",
-    "@polkadot/util": "8.0.3",
-    "@polkadot/util-crypto": "8.0.3"
+    "@polkadot/util": "8.0.4",
+    "@polkadot/util-crypto": "8.0.4"
   },
   "peerDependencies": {
-    "@polkadot/util": "8.0.3",
-    "@polkadot/util-crypto": "8.0.3"
+    "@polkadot/util": "8.0.4",
+    "@polkadot/util-crypto": "8.0.4"
   }
 }
diff --git a/packages/networks/package.json b/packages/networks/package.json
index a830fc182..00cc49500 100644
--- a/packages/networks/package.json
+++ b/packages/networks/package.json
@@ -17,13 +17,13 @@
   },
   "sideEffects": false,
   "type": "module",
-  "version": "8.0.3",
+  "version": "8.0.4",
   "main": "index.js",
   "dependencies": {
     "@babel/runtime": "^7.16.3"
   },
   "devDependencies": {
-    "@polkadot/util": "8.0.3",
-    "@polkadot/x-fetch": "8.0.3"
+    "@polkadot/util": "8.0.4",
+    "@polkadot/x-fetch": "8.0.4"
   }
 }
diff --git a/packages/util-crypto/package.json b/packages/util-crypto/package.json
index 22db150e7..65052e5ec 100644
--- a/packages/util-crypto/package.json
+++ b/packages/util-crypto/package.json
@@ -25,15 +25,15 @@
     "./detectPackage.cjs"
   ],
   "type": "module",
-  "version": "8.0.3",
+  "version": "8.0.4",
   "main": "index.js",
   "dependencies": {
     "@babel/runtime": "^7.16.3",
     "@noble/hashes": "0.4.1",
-    "@polkadot/networks": "8.0.3",
-    "@polkadot/util": "8.0.3",
+    "@polkadot/networks": "8.0.4",
+    "@polkadot/util": "8.0.4",
     "@polkadot/wasm-crypto": "^4.4.1",
-    "@polkadot/x-randomvalues": "8.0.3",
+    "@polkadot/x-randomvalues": "8.0.4",
     "bn.js": "^4.12.0",
     "ed2curve": "^0.3.0",
     "elliptic": "^6.5.4",
@@ -46,6 +46,6 @@
     "@types/elliptic": "^6.4.14"
   },
   "peerDependencies": {
-    "@polkadot/util": "8.0.3"
+    "@polkadot/util": "8.0.4"
   }
 }
diff --git a/packages/util/package.json b/packages/util/package.json
index 0cdd85727..f5234e4b4 100644
--- a/packages/util/package.json
+++ b/packages/util/package.json
@@ -34,12 +34,12 @@
     "./detectPackage.cjs"
   ],
   "type": "module",
-  "version": "8.0.3",
+  "version": "8.0.4",
   "main": "index.js",
   "dependencies": {
     "@babel/runtime": "^7.16.3",
-    "@polkadot/x-textdecoder": "8.0.3",
-    "@polkadot/x-textencoder": "8.0.3",
+    "@polkadot/x-textdecoder": "8.0.4",
+    "@polkadot/x-textencoder": "8.0.4",
     "@types/bn.js": "^4.11.6",
     "bn.js": "^4.12.0",
     "ip-regex": "^4.3.0"
diff --git a/packages/util/src/string/camelCase.spec.ts b/packages/util/src/string/camelCase.spec.ts
index 8a55abff4..783527599 100644
--- a/packages/util/src/string/camelCase.spec.ts
+++ b/packages/util/src/string/camelCase.spec.ts
@@ -49,5 +49,17 @@ describe('stringCamelCase', (): void => {
     ).toEqual('dedupKeyPrefix');
   });
 
+  it('adjusts with leading _', (): void => {
+    expect(
+      stringCamelCase('_reserved')
+    ).toEqual('reserved');
+  });
+
+  it('adjusts with minimal chars per part', (): void => {
+    expect(
+      stringCamelCase('_a_b_c_def')
+    ).toEqual('aBCDef');
+  });
+
   performance('stringCamelCase', 64000, randomWords, stringCamelCase);
 });
diff --git a/packages/util/src/string/camelCase.ts b/packages/util/src/string/camelCase.ts
index 68479d710..8aa190e9c 100644
--- a/packages/util/src/string/camelCase.ts
+++ b/packages/util/src/string/camelCase.ts
@@ -18,6 +18,7 @@ function converter (fn: (w: string, i: number) => string): (value: AnyString) =>
     value
       .toString()
       .replace(/[-_., ]+/g, ' ')
+      .trim()
       .split(' ')
       .map((w, i) =>
         fn(w[0], i) + (
diff --git a/packages/x-bundle/package.json b/packages/x-bundle/package.json
index 88b8b2bad..5282ebcfd 100644
--- a/packages/x-bundle/package.json
+++ b/packages/x-bundle/package.json
@@ -17,11 +17,11 @@
   },
   "sideEffects": false,
   "type": "module",
-  "version": "8.0.3",
+  "version": "8.0.4",
   "main": "index.js",
   "dependencies": {
     "@babel/runtime": "^7.16.3",
-    "@polkadot/util": "8.0.3",
+    "@polkadot/util": "8.0.4",
     "buffer-es6": "^4.9.3"
   }
 }
diff --git a/packages/x-fetch/package.json b/packages/x-fetch/package.json
index 8893a2d03..8c48ecfd9 100644
--- a/packages/x-fetch/package.json
+++ b/packages/x-fetch/package.json
@@ -17,13 +17,13 @@
   },
   "sideEffects": false,
   "type": "module",
-  "version": "8.0.3",
+  "version": "8.0.4",
   "browser": "browser.js",
   "main": "node.js",
   "react-native": "react-native.js",
   "dependencies": {
     "@babel/runtime": "^7.16.3",
-    "@polkadot/x-global": "8.0.3",
+    "@polkadot/x-global": "8.0.4",
     "@types/node-fetch": "^2.5.12",
     "node-fetch": "^2.6.6"
   }
diff --git a/packages/x-global/package.json b/packages/x-global/package.json
index 0d4215989..3449ff342 100644
--- a/packages/x-global/package.json
+++ b/packages/x-global/package.json
@@ -17,7 +17,7 @@
   },
   "sideEffects": false,
   "type": "module",
-  "version": "8.0.3",
+  "version": "8.0.4",
   "main": "index.js",
   "dependencies": {
     "@babel/runtime": "^7.16.3"
diff --git a/packages/x-randomvalues/package.json b/packages/x-randomvalues/package.json
index c5bc1eeae..617a78c71 100644
--- a/packages/x-randomvalues/package.json
+++ b/packages/x-randomvalues/package.json
@@ -17,13 +17,13 @@
   },
   "sideEffects": false,
   "type": "module",
-  "version": "8.0.3",
+  "version": "8.0.4",
   "browser": "browser.js",
   "main": "node.js",
   "react-native": "react-native.js",
   "dependencies": {
     "@babel/runtime": "^7.16.3",
-    "@polkadot/x-global": "8.0.3"
+    "@polkadot/x-global": "8.0.4"
   },
   "devDependencies": {
     "@types/react-native": "^0.66.5"
diff --git a/packages/x-textdecoder/package.json b/packages/x-textdecoder/package.json
index e369578cc..973cee6c7 100644
--- a/packages/x-textdecoder/package.json
+++ b/packages/x-textdecoder/package.json
@@ -17,12 +17,12 @@
   },
   "sideEffects": false,
   "type": "module",
-  "version": "8.0.3",
+  "version": "8.0.4",
   "browser": "browser.js",
   "main": "node.js",
   "react-native": "react-native.js",
   "dependencies": {
     "@babel/runtime": "^7.16.3",
-    "@polkadot/x-global": "8.0.3"
+    "@polkadot/x-global": "8.0.4"
   }
 }
diff --git a/packages/x-textencoder/package.json b/packages/x-textencoder/package.json
index 97015f5dd..aa6a881fc 100644
--- a/packages/x-textencoder/package.json
+++ b/packages/x-textencoder/package.json
@@ -17,12 +17,12 @@
   },
   "sideEffects": false,
   "type": "module",
-  "version": "8.0.3",
+  "version": "8.0.4",
   "browser": "browser.js",
   "main": "node.js",
   "react-native": "react-native.js",
   "dependencies": {
     "@babel/runtime": "^7.16.3",
-    "@polkadot/x-global": "8.0.3"
+    "@polkadot/x-global": "8.0.4"
   }
 }
diff --git a/packages/x-ws/package.json b/packages/x-ws/package.json
index 947687e92..b70f49fc5 100644
--- a/packages/x-ws/package.json
+++ b/packages/x-ws/package.json
@@ -17,13 +17,13 @@
   },
   "sideEffects": false,
   "type": "module",
-  "version": "8.0.3",
+  "version": "8.0.4",
   "browser": "browser.js",
   "main": "node.js",
   "react-native": "react-native.js",
   "dependencies": {
     "@babel/runtime": "^7.16.3",
-    "@polkadot/x-global": "8.0.3",
+    "@polkadot/x-global": "8.0.4",
     "@types/websocket": "^1.0.4",
     "websocket": "^1.0.34"
   }
diff --git a/yarn.lock b/yarn.lock
index 4558ad53f..2e87d3ebf 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2028,7 +2028,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@polkadot/hw-ledger-transports@8.0.3, @polkadot/hw-ledger-transports@workspace:packages/hw-ledger-transports":
+"@polkadot/hw-ledger-transports@8.0.4, @polkadot/hw-ledger-transports@workspace:packages/hw-ledger-transports":
   version: 0.0.0-use.local
   resolution: "@polkadot/hw-ledger-transports@workspace:packages/hw-ledger-transports"
   dependencies:
@@ -2048,8 +2048,8 @@ __metadata:
   resolution: "@polkadot/hw-ledger@workspace:packages/hw-ledger"
   dependencies:
     "@babel/runtime": ^7.16.3
-    "@polkadot/hw-ledger-transports": 8.0.3
-    "@polkadot/util": 8.0.3
+    "@polkadot/hw-ledger-transports": 8.0.4
+    "@polkadot/util": 8.0.4
     "@zondax/ledger-substrate": ^0.18.0
   languageName: unknown
   linkType: soft
@@ -2059,21 +2059,21 @@ __metadata:
   resolution: "@polkadot/keyring@workspace:packages/keyring"
   dependencies:
     "@babel/runtime": ^7.16.3
-    "@polkadot/util": 8.0.3
-    "@polkadot/util-crypto": 8.0.3
+    "@polkadot/util": 8.0.4
+    "@polkadot/util-crypto": 8.0.4
   peerDependencies:
-    "@polkadot/util": 8.0.3
-    "@polkadot/util-crypto": 8.0.3
+    "@polkadot/util": 8.0.4
+    "@polkadot/util-crypto": 8.0.4
   languageName: unknown
   linkType: soft
 
-"@polkadot/networks@8.0.3, @polkadot/networks@workspace:packages/networks":
+"@polkadot/networks@8.0.4, @polkadot/networks@workspace:packages/networks":
   version: 0.0.0-use.local
   resolution: "@polkadot/networks@workspace:packages/networks"
   dependencies:
     "@babel/runtime": ^7.16.3
-    "@polkadot/util": 8.0.3
-    "@polkadot/x-fetch": 8.0.3
+    "@polkadot/util": 8.0.4
+    "@polkadot/x-fetch": 8.0.4
   languageName: unknown
   linkType: soft
 
@@ -2086,16 +2086,16 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@polkadot/util-crypto@8.0.3, @polkadot/util-crypto@workspace:packages/util-crypto":
+"@polkadot/util-crypto@8.0.4, @polkadot/util-crypto@workspace:packages/util-crypto":
   version: 0.0.0-use.local
   resolution: "@polkadot/util-crypto@workspace:packages/util-crypto"
   dependencies:
     "@babel/runtime": ^7.16.3
     "@noble/hashes": 0.4.1
-    "@polkadot/networks": 8.0.3
-    "@polkadot/util": 8.0.3
+    "@polkadot/networks": 8.0.4
+    "@polkadot/util": 8.0.4
     "@polkadot/wasm-crypto": ^4.4.1
-    "@polkadot/x-randomvalues": 8.0.3
+    "@polkadot/x-randomvalues": 8.0.4
     "@types/bn.js": ^4.11.6
     "@types/ed2curve": ^0.2.2
     "@types/elliptic": ^6.4.14
@@ -2105,17 +2105,17 @@ __metadata:
     micro-base: ^0.9.0
     tweetnacl: ^1.0.3
   peerDependencies:
-    "@polkadot/util": 8.0.3
+    "@polkadot/util": 8.0.4
   languageName: unknown
   linkType: soft
 
-"@polkadot/util@8.0.3, @polkadot/util@workspace:packages/util":
+"@polkadot/util@8.0.4, @polkadot/util@workspace:packages/util":
   version: 0.0.0-use.local
   resolution: "@polkadot/util@workspace:packages/util"
   dependencies:
     "@babel/runtime": ^7.16.3
-    "@polkadot/x-textdecoder": 8.0.3
-    "@polkadot/x-textencoder": 8.0.3
+    "@polkadot/x-textdecoder": 8.0.4
+    "@polkadot/x-textencoder": 8.0.4
     "@types/bn.js": ^4.11.6
     bn.js: ^4.12.0
     ip-regex: ^4.3.0
@@ -2159,23 +2159,23 @@ __metadata:
   resolution: "@polkadot/x-bundle@workspace:packages/x-bundle"
   dependencies:
     "@babel/runtime": ^7.16.3
-    "@polkadot/util": 8.0.3
+    "@polkadot/util": 8.0.4
     buffer-es6: ^4.9.3
   languageName: unknown
   linkType: soft
 
-"@polkadot/x-fetch@8.0.3, @polkadot/x-fetch@workspace:packages/x-fetch":
+"@polkadot/x-fetch@8.0.4, @polkadot/x-fetch@workspace:packages/x-fetch":
   version: 0.0.0-use.local
   resolution: "@polkadot/x-fetch@workspace:packages/x-fetch"
   dependencies:
     "@babel/runtime": ^7.16.3
-    "@polkadot/x-global": 8.0.3
+    "@polkadot/x-global": 8.0.4
     "@types/node-fetch": ^2.5.12
     node-fetch: ^2.6.6
   languageName: unknown
   linkType: soft
 
-"@polkadot/x-global@8.0.3, @polkadot/x-global@workspace:packages/x-global":
+"@polkadot/x-global@8.0.4, @polkadot/x-global@workspace:packages/x-global":
   version: 0.0.0-use.local
   resolution: "@polkadot/x-global@workspace:packages/x-global"
   dependencies:
@@ -2183,31 +2183,31 @@ __metadata:
   languageName: unknown
   linkType: soft
 
-"@polkadot/x-randomvalues@8.0.3, @polkadot/x-randomvalues@workspace:packages/x-randomvalues":
+"@polkadot/x-randomvalues@8.0.4, @polkadot/x-randomvalues@workspace:packages/x-randomvalues":
   version: 0.0.0-use.local
   resolution: "@polkadot/x-randomvalues@workspace:packages/x-randomvalues"
   dependencies:
     "@babel/runtime": ^7.16.3
-    "@polkadot/x-global": 8.0.3
+    "@polkadot/x-global": 8.0.4
     "@types/react-native": ^0.66.5
   languageName: unknown
   linkType: soft
 
-"@polkadot/x-textdecoder@8.0.3, @polkadot/x-textdecoder@workspace:packages/x-textdecoder":
+"@polkadot/x-textdecoder@8.0.4, @polkadot/x-textdecoder@workspace:packages/x-textdecoder":
   version: 0.0.0-use.local
   resolution: "@polkadot/x-textdecoder@workspace:packages/x-textdecoder"
   dependencies:
     "@babel/runtime": ^7.16.3
-    "@polkadot/x-global": 8.0.3
+    "@polkadot/x-global": 8.0.4
   languageName: unknown
   linkType: soft
 
-"@polkadot/x-textencoder@8.0.3, @polkadot/x-textencoder@workspace:packages/x-textencoder":
+"@polkadot/x-textencoder@8.0.4, @polkadot/x-textencoder@workspace:packages/x-textencoder":
   version: 0.0.0-use.local
   resolution: "@polkadot/x-textencoder@workspace:packages/x-textencoder"
   dependencies:
     "@babel/runtime": ^7.16.3
-    "@polkadot/x-global": 8.0.3
+    "@polkadot/x-global": 8.0.4
   languageName: unknown
   linkType: soft
 
@@ -2216,7 +2216,7 @@ __metadata:
   resolution: "@polkadot/x-ws@workspace:packages/x-ws"
   dependencies:
     "@babel/runtime": ^7.16.3
-    "@polkadot/x-global": 8.0.3
+    "@polkadot/x-global": 8.0.4
     "@types/websocket": ^1.0.4
     websocket: ^1.0.34
   languageName: unknown