diff --git a/source/libs/stream/src/streamMeta.c b/source/libs/stream/src/streamMeta.c
index ce391eeadb..dc69c392cf 100644
--- a/source/libs/stream/src/streamMeta.c
+++ b/source/libs/stream/src/streamMeta.c
@@ -394,7 +394,7 @@ SStreamMeta* streamMetaOpen(const char* path, void* ahandle, FTaskExpand expandF
   pMeta->qHandle = taosInitScheduler(32, 1, "stream-chkp", NULL);
 
   pMeta->bkdChkptMgt = bkdMgtCreate(tpath);
-
+  taosThreadMutexInit(&pMeta->backendMutex, NULL);
   return pMeta;
 
 _err: