diff --git a/source/libs/stream/src/streamCheckpoint.c b/source/libs/stream/src/streamCheckpoint.c
index b52c512c37..ec96ad7108 100644
--- a/source/libs/stream/src/streamCheckpoint.c
+++ b/source/libs/stream/src/streamCheckpoint.c
@@ -453,7 +453,6 @@ int32_t uploadCheckpointData(void* param) {
   taosRemoveDir(path);
   taosMemoryFree(path);
   taosMemoryFree(arg->taskId);
-  taosMemoryFree(arg->taskStr);
   taosMemoryFree(arg);
   return code;
 }