diff --git a/lib-ee/emqx_ee_connector/src/emqx_ee_connector_sqlserver.erl b/lib-ee/emqx_ee_connector/src/emqx_ee_connector_sqlserver.erl
index 586444947..dc9759341 100644
--- a/lib-ee/emqx_ee_connector/src/emqx_ee_connector_sqlserver.erl
+++ b/lib-ee/emqx_ee_connector/src/emqx_ee_connector_sqlserver.erl
@@ -525,4 +525,4 @@ apply_template(Query, Templates) ->
     {error, failed_to_apply_sql_template}.
 
 do_async_reply(Result, {ReplyFun, Args}) ->
-    erlang:apply(ReplyFun, Args ++ Result).
+    erlang:apply(ReplyFun, Args ++ [Result]).