diff --git a/source/dnode/mnode/impl/src/mndIndex.c b/source/dnode/mnode/impl/src/mndIndex.c
index 622ed0080f..f2e2c556cf 100644
--- a/source/dnode/mnode/impl/src/mndIndex.c
+++ b/source/dnode/mnode/impl/src/mndIndex.c
@@ -597,6 +597,7 @@ static int32_t mndSetUpdateIdxStbCommitLogs(SMnode *pMnode, STrans *pTrans, SStb
   taosRUnLockLatch(&pOld->lock);
 
   pNew->pTags = NULL;
+  pNew->pColumns = NULL;
   pNew->updateTime = taosGetTimestampMs();
   pNew->lock = 0;