diff --git a/src/query/src/qAggMain.c b/src/query/src/qAggMain.c
index 19d8ac6f392fe3f96f84ca2779469e647f111b3b..dc61f7d9a489c56e775294f470163d227c7ed353 100644
--- a/src/query/src/qAggMain.c
+++ b/src/query/src/qAggMain.c
@@ -5119,7 +5119,7 @@ SAggFunctionInfo aAggs[40] = {{
                               "twa",
                               TSDB_FUNC_TWA,
                               TSDB_FUNC_TWA,
-                              TSDB_BASE_FUNC_SO | TSDB_FUNCSTATE_NEED_TS,
+                              TSDB_FUNCSTATE_SO | TSDB_FUNCSTATE_STABLE | TSDB_FUNCSTATE_NEED_TS,
                               twa_function_setup,
                               twa_function,
                               twa_function_finalizer,