diff --git a/source/dnode/vnode/src/tsdb/tsdbCache.c b/source/dnode/vnode/src/tsdb/tsdbCache.c
index db07223106..1e820ec3c7 100644
--- a/source/dnode/vnode/src/tsdb/tsdbCache.c
+++ b/source/dnode/vnode/src/tsdb/tsdbCache.c
@@ -2053,7 +2053,9 @@ static int32_t getNextRowFromFS(void *iter, TSDBROW **ppRow, bool *pIgnoreEarlie
     }
 
     if (!state->pLastRow) {
-      lastIterClose(&state->pLastIter);
+      if (state->pLastIter) {
+        lastIterClose(&state->pLastIter);
+      }
 
       clearLastFileSet(state);
       state->state = SFSNEXTROW_FILESET;
@@ -2154,7 +2156,9 @@ static int32_t getNextRowFromFS(void *iter, TSDBROW **ppRow, bool *pIgnoreEarlie
     }
 
     if (!state->pLastRow) {
-      lastIterClose(&state->pLastIter);
+      if (state->pLastIter) {
+        lastIterClose(&state->pLastIter);
+      }
 
       *ppRow = &state->row;
       --state->iRow;