diff --git a/src/query/src/qFill.c b/src/query/src/qFill.c
index bc37c7ee1ac6298fb1b10f52f47ad782fa226e51..a70bd2d45a274f8688564d934bdc910cd4a27f3b 100644
--- a/src/query/src/qFill.c
+++ b/src/query/src/qFill.c
@@ -375,7 +375,7 @@ SFillInfo* taosCreateFillInfo(int32_t order, TSKEY skey, int32_t numOfTags, int3
 
   pFillInfo->pData = malloc(POINTER_BYTES * numOfCols);
   if (pFillInfo->pData == NULL) {
-    tfree(pFillInfo->pData);
+    tfree(pFillInfo);
     return NULL;
   }