diff --git a/source/dnode/vnode/src/tsdb/tsdbMemTable.c b/source/dnode/vnode/src/tsdb/tsdbMemTable.c
index b52cb17025..3a4ada04a8 100644
--- a/source/dnode/vnode/src/tsdb/tsdbMemTable.c
+++ b/source/dnode/vnode/src/tsdb/tsdbMemTable.c
@@ -581,7 +581,7 @@ static void tbDataMovePosTo(STbData *pTbData, SMemSkipListNode **pos, TSDBKEY *p
 
       for (int8_t iLevel = pTbData->sl.level - 1; iLevel >= 0; iLevel--) {
         pn = SL_NODE_FORWARD(px, iLevel);
-        while (pn != pTbData->sl.pHead) {
+        while (pn != pTbData->sl.pTail) {
           pTKey = (TSDBKEY *)SL_NODE_DATA(pn);
 
           c = tsdbKeyCmprFn(pTKey, pKey);