diff --git a/source/dnode/mnode/impl/src/mndIndex.c b/source/dnode/mnode/impl/src/mndIndex.c
index 622ed0080f..43d13ae602 100644
--- a/source/dnode/mnode/impl/src/mndIndex.c
+++ b/source/dnode/mnode/impl/src/mndIndex.c
@@ -596,6 +596,9 @@ static int32_t mndSetUpdateIdxStbCommitLogs(SMnode *pMnode, STrans *pTrans, SStb
   memcpy(pNew, pOld, sizeof(SStbObj));
   taosRUnLockLatch(&pOld->lock);
 
+  pNew->pTags = NULL;
+  pNew->pColumns = NULL;
+
   pNew->pTags = NULL;
   pNew->updateTime = taosGetTimestampMs();
   pNew->lock = 0;