diff --git a/source/dnode/vnode/src/tsdb/tsdbFS2.c b/source/dnode/vnode/src/tsdb/tsdbFS2.c
index 7e79a618a8..24916bf47c 100644
--- a/source/dnode/vnode/src/tsdb/tsdbFS2.c
+++ b/source/dnode/vnode/src/tsdb/tsdbFS2.c
@@ -1020,7 +1020,10 @@ int32_t tsdbFSCreateRefSnapshotWithoutLock(STFileSystem *fs, TFileSetArray **fse
     if (code) break;
 
     code = TARRAY2_APPEND(fsetArr[0], fset1);
-    if (code) break;
+    if (code) {
+      tsdbTFileSetClear(&fset1);
+      break;
+    }
   }
 
   if (code) {
@@ -1219,4 +1222,4 @@ int32_t tsdbFinishTaskOnFileSet(STsdb *tsdb, int32_t fid) {
   }
 
   return 0;
-}
\ No newline at end of file
+}