diff --git a/packages/api-derive/src/staking/query.ts b/packages/api-derive/src/staking/query.ts
index b307947308..9999a6a848 100644
--- a/packages/api-derive/src/staking/query.ts
+++ b/packages/api-derive/src/staking/query.ts
@@ -13,7 +13,7 @@ import { Option, Vec } from '@polkadot/types';
 
 import { memo } from '../util';
 
-type MultiResult = [Option<AccountId>, Option<ITuple<[Nominations]> | Nominations>, RewardDestination, ITuple<[ValidatorPrefs]>, Option<Keys>, Exposure];
+type MultiResult = [Option<AccountId>, Option<ITuple<[Nominations]> | Nominations>, RewardDestination, ITuple<[ValidatorPrefs]> | ValidatorPrefs, Option<Keys>, Exposure];
 
 function unwrapSessionIds (stashId: AccountId, queuedKeys: [AccountId, Keys][], nextKeys: Option<Keys>): { nextSessionIds: AccountId[]; sessionIds: AccountId[] } {
   const sessionIds = (queuedKeys.find(([currentId]): boolean =>
@@ -55,7 +55,7 @@ function retrieveCurr (api: ApiInterfaceRx, stashId: AccountId): Observable<Mult
   );
 }
 
-function retrieveController (api: ApiInterfaceRx, stashId: AccountId, [queuedKeys, [controllerIdOpt, nominatorsOpt, rewardDestination, [validatorPrefs], nextKeys, exposure]]: [Vec<ITuple<[AccountId, Keys]>>, MultiResult]): Observable<DerivedStakingQuery> {
+function retrieveController (api: ApiInterfaceRx, stashId: AccountId, [queuedKeys, [controllerIdOpt, nominatorsOpt, rewardDestination, validatorPrefs, nextKeys, exposure]]: [Vec<ITuple<[AccountId, Keys]>>, MultiResult]): Observable<DerivedStakingQuery> {
   const controllerId = controllerIdOpt.unwrapOr(null);
   const nominators = nominatorsOpt.unwrapOr(null);
 
@@ -73,7 +73,9 @@ function retrieveController (api: ApiInterfaceRx, stashId: AccountId, [queuedKey
         rewardDestination,
         stakingLedger: stakingLedgerOpt.unwrapOr(undefined),
         stashId,
-        validatorPrefs,
+        validatorPrefs: Array.isArray(validatorPrefs)
+          ? validatorPrefs[0]
+          : validatorPrefs,
         ...unwrapSessionIds(stashId, queuedKeys, nextKeys)
       }))
     )