diff --git a/source/libs/executor/src/executorimpl.c b/source/libs/executor/src/executorimpl.c
index cdb924290f..ff8f34b0c6 100644
--- a/source/libs/executor/src/executorimpl.c
+++ b/source/libs/executor/src/executorimpl.c
@@ -956,6 +956,10 @@ void extractQualifiedTupleByFilterResult(SSDataBlock* pBlock, const SColumnInfoD
         ASSERT(pBlock->info.rows == numOfRows);
       }
     }
+
+    if (pBitmap != NULL) {
+      taosMemoryFree(pBitmap);
+    }
   }
 }