diff --git a/src/observer/ob_inner_sql_connection.cpp b/src/observer/ob_inner_sql_connection.cpp
index 21fb4367e1e375d4e74b5e8c870683049635adfa..451fe1dd7f53d291f762d7f01904493a3cddb16e 100644
--- a/src/observer/ob_inner_sql_connection.cpp
+++ b/src/observer/ob_inner_sql_connection.cpp
@@ -73,7 +73,7 @@ public:
       MEMCPY(dup_sql->ptr(), sql_.ptr(), sql_.length());
       dup_sql->ptr()[sql_.length()] = '\0';
       res.get_session().store_query_string(*dup_sql);
-      ret = engine.stmt_query(sql_, ctx, res);
+      ret = engine.stmt_query(*dup_sql, ctx, res);
     }
     return ret;
   }