diff --git a/src/tsdb/src/tsdbRead.c b/src/tsdb/src/tsdbRead.c
index 145ee5afa5c705896390d756794ff3eb099c0ed6..e2f1bbcdb9b21562be722458cc73c5a4ef0a62bd 100644
--- a/src/tsdb/src/tsdbRead.c
+++ b/src/tsdb/src/tsdbRead.c
@@ -2207,6 +2207,10 @@ void tsdbCleanupQueryHandle(TsdbQueryHandleT queryHandle) {
   size_t size = taosArrayGetSize(pQueryHandle->pTableCheckInfo);
   for (int32_t i = 0; i < size; ++i) {
     STableCheckInfo* pTableCheckInfo = taosArrayGet(pQueryHandle->pTableCheckInfo, i);
+
+    tsdbUnRefMemTable(pQueryHandle->pTsdb, pTableCheckInfo->mem);
+    tsdbUnRefMemTable(pQueryHandle->pTsdb, pTableCheckInfo->imem);
+
     tSkipListDestroyIter(pTableCheckInfo->iter);
 
     if (pTableCheckInfo->pDataCols != NULL) {