diff --git a/source/dnode/vnode/src/tsdb/tsdbCacheRead.c b/source/dnode/vnode/src/tsdb/tsdbCacheRead.c
index a196c2d398..8f168e67a8 100644
--- a/source/dnode/vnode/src/tsdb/tsdbCacheRead.c
+++ b/source/dnode/vnode/src/tsdb/tsdbCacheRead.c
@@ -225,6 +225,9 @@ int32_t tsdbCacherowsReaderOpen(void* pVnode, int32_t type, void* pTableIdList,
 
 void* tsdbCacherowsReaderClose(void* pReader) {
   SCacheRowsReader* p = pReader;
+  if (p == NULL) {
+    return NULL;
+  }
 
   if (p->pSchema != NULL) {
     for (int32_t i = 0; i < p->pSchema->numOfCols; ++i) {