diff --git a/source/libs/executor/src/streamfilloperator.c b/source/libs/executor/src/streamfilloperator.c
index 6bce2e54a1..7b364de09d 100644
--- a/source/libs/executor/src/streamfilloperator.c
+++ b/source/libs/executor/src/streamfilloperator.c
@@ -1858,7 +1858,7 @@ int32_t createStreamFillOperatorInfo(SOperatorInfo* downstream, SStreamFillPhysi
     pOperator->fpSet = createOperatorFpSet(optrDummyOpenFn, doStreamForceFillNext, NULL, destroyStreamFillOperatorInfo,
                                            optrDefaultBufFn, NULL, optrDefaultGetNextExtFn, NULL);
   } else {
-    pInfo->pState != NULL;
+    pInfo->pState = NULL;
     pOperator->fpSet = createOperatorFpSet(optrDummyOpenFn, doStreamFillNext, NULL, destroyStreamFillOperatorInfo,
                                            optrDefaultBufFn, NULL, optrDefaultGetNextExtFn, NULL);
   }