diff --git a/core/types/bundle_gasless.go b/core/types/bundle_gasless.go
index 0c8caca763..eb0871d605 100644
--- a/core/types/bundle_gasless.go
+++ b/core/types/bundle_gasless.go
@@ -10,9 +10,8 @@ type SimulateGaslessBundleArgs struct {
 }
 
 type GaslessTxSimResult struct {
-	Hash      common.Hash
-	GasUsed   uint64
-	ErrorCode int
+	Hash    common.Hash
+	GasUsed uint64
 }
 
 type SimulateGaslessBundleResp struct {