diff --git a/source/dnode/mnode/impl/src/mndStreamUtil.c b/source/dnode/mnode/impl/src/mndStreamUtil.c
index 10c6e5bf82..85e9737958 100644
--- a/source/dnode/mnode/impl/src/mndStreamUtil.c
+++ b/source/dnode/mnode/impl/src/mndStreamUtil.c
@@ -208,6 +208,7 @@ int32_t mndTakeVgroupSnapshot(SMnode *pMnode, bool *allReady, SArray **pList) {
   }
 
   *pList = pVgroupList;
+  taosHashCleanup(pHash);
   return code;
 
 _err: