diff --git a/src/sql/engine/subquery/ob_subplan_filter_op.h b/src/sql/engine/subquery/ob_subplan_filter_op.h
index ac65723ad3..0c2989ed2d 100644
--- a/src/sql/engine/subquery/ob_subplan_filter_op.h
+++ b/src/sql/engine/subquery/ob_subplan_filter_op.h
@@ -45,6 +45,10 @@ public:
     if (hashmap_.created()) {
       hashmap_.destroy();
     }
+    if (nullptr != mem_entity_) {
+      DESTROY_CONTEXT(mem_entity_);
+      mem_entity_ = NULL;
+    }
   }
   enum RescanStatus
   {