diff --git a/packages/api-derive/src/staking/stakerRewards.ts b/packages/api-derive/src/staking/stakerRewards.ts
index fb8e4126fe..18b6b8ab4c 100644
--- a/packages/api-derive/src/staking/stakerRewards.ts
+++ b/packages/api-derive/src/staking/stakerRewards.ts
@@ -120,8 +120,6 @@ function filterRewards (eras: EraIndex[], valInfo: [string, DeriveStakingQuery][
         return false;
       }
 
-      reward.isStakerPayout = true;
-
       removeClaimed(validators, queryValidators, reward);
 
       return true;
diff --git a/packages/api-derive/src/staking/types.ts b/packages/api-derive/src/staking/types.ts
index 8222cd6f82..c89e0d7348 100644
--- a/packages/api-derive/src/staking/types.ts
+++ b/packages/api-derive/src/staking/types.ts
@@ -81,7 +81,6 @@ export interface DeriveStakerRewardValidator {
 export interface DeriveStakerReward {
   era: EraIndex;
   eraReward: Balance;
-  isStakerPayout?: boolean;
   isEmpty: boolean;
   isValidator: boolean;
   nominating: DeriveEraExposureNominating[];