diff --git a/packages/types-known/src/chain/westend.ts b/packages/types-known/src/chain/westend.ts
index b23d802753..9829c7e0f1 100644
--- a/packages/types-known/src/chain/westend.ts
+++ b/packages/types-known/src/chain/westend.ts
@@ -8,7 +8,9 @@ const versioned: OverrideVersionedType[] = [
   {
     minmax: [1, undefined],
     types: {
-      Keys: 'SessionKeys5'
+      Address: 'AccountId',
+      Keys: 'SessionKeys5',
+      LookupSource: 'AccountId'
     }
   }
 ];