diff --git a/packages/api-derive/src/staking/ownExposure.ts b/packages/api-derive/src/staking/ownExposure.ts
index 9022605b5b..c6d9ee5a35 100644
--- a/packages/api-derive/src/staking/ownExposure.ts
+++ b/packages/api-derive/src/staking/ownExposure.ts
@@ -15,7 +15,7 @@ const CACHE_KEY = 'ownExposure';
 
 export function _ownExposure (api: ApiInterfaceRx): (accountId: Uint8Array | string, era: EraIndex, withActive: boolean) => Observable<DeriveOwnExposure> {
   return memo((accountId: Uint8Array | string, era: EraIndex, withActive: boolean): Observable<DeriveOwnExposure> => {
-    const cacheKey = `${CACHE_KEY}-${era.toString()}`;
+    const cacheKey = `${CACHE_KEY}-${era.toString()}-${accountId.toString()}`;
     const cached = withActive
       ? undefined
       : deriveCache.get<DeriveOwnExposure>(cacheKey);
diff --git a/packages/api-derive/src/staking/ownSlashes.ts b/packages/api-derive/src/staking/ownSlashes.ts
index 7da1a98b90..ef636c55c2 100644
--- a/packages/api-derive/src/staking/ownSlashes.ts
+++ b/packages/api-derive/src/staking/ownSlashes.ts
@@ -17,7 +17,7 @@ const CACHE_KEY = 'ownSlash';
 
 export function _ownSlash (api: ApiInterfaceRx): (accountId: Uint8Array | string, era: EraIndex, withActive: boolean) => Observable<DeriveStakerSlashes> {
   return memo((accountId: Uint8Array | string, era: EraIndex, withActive: boolean): Observable<DeriveStakerSlashes> => {
-    const cacheKey = `${CACHE_KEY}-${era.toString()}`;
+    const cacheKey = `${CACHE_KEY}-${era.toString()}-${accountId.toString()}`;
     const cached = withActive
       ? undefined
       : deriveCache.get<DeriveStakerSlashes>(cacheKey);