diff --git a/packages/api-derive/src/elections/approvalsOf.ts b/packages/api-derive/src/elections/approvalsOf.ts
index 6456146dd9..4cbc879e2c 100644
--- a/packages/api-derive/src/elections/approvalsOf.ts
+++ b/packages/api-derive/src/elections/approvalsOf.ts
@@ -24,21 +24,20 @@ import { drr } from '../util/drr';
  * ```
  */
 export function approvalsOf (api: ApiInterfaceRx): (who: AccountId) => Observable<boolean[][]> {
-  return (who: AccountId): Observable<boolean[][]> =>
-    (api.query.elections.nextVoterSet<SetIndex>())
-      .pipe(
-        switchMap((nextVoterSet: SetIndex): Observable<Vec<ApprovalFlag>[]> =>
-          api.query.elections.approvalsOf.multi(
-            [...Array(nextVoterSet.toNumber() + 1).keys()].map((i): [string, number] => [
-              who.toString(), i]
-            )
-          ) as any as Observable<Vec<ApprovalFlag>[]>
-        ),
-        map((votes: Vec<ApprovalFlag>[]): boolean[][] =>
-          votes.map((flags: Vec<ApprovalFlag>): boolean[] =>
-            approvalFlagsToBools(flags)
+  return (who: AccountId | string): Observable<boolean[][]> =>
+    api.query.elections.nextVoterSet<SetIndex>().pipe(
+      switchMap((nextVoterSet: SetIndex): Observable<Vec<ApprovalFlag>[]> =>
+        api.query.elections.approvalsOf.multi(
+          [...Array(nextVoterSet.toNumber() + 1).keys()].map((i): [string, number] => [
+            who.toString(), i]
           )
-        ),
-        drr()
-      );
+        ) as any as Observable<Vec<ApprovalFlag>[]>
+      ),
+      map((votes: Vec<ApprovalFlag>[]): boolean[][] =>
+        votes.map((flags: Vec<ApprovalFlag>): boolean[] =>
+          approvalFlagsToBools(flags)
+        )
+      ),
+      drr()
+    );
 }