diff --git a/src/Processors/QueryPlan/Optimizations/removeRedundantOrderBy.cpp b/src/Processors/QueryPlan/Optimizations/removeRedundantOrderBy.cpp
index 035e9958641..1ef86bd2f0c 100644
--- a/src/Processors/QueryPlan/Optimizations/removeRedundantOrderBy.cpp
+++ b/src/Processors/QueryPlan/Optimizations/removeRedundantOrderBy.cpp
@@ -33,7 +33,7 @@ struct FrameWithParent
 
 using StackWithParent = std::vector<FrameWithParent>;
 
-bool checkForStatefulFunctions(std::vector<FrameWithParent> const & stack, const QueryPlan::Node * node_affect_order)
+bool checkForStatefulFunctions(const StackWithParent & stack, const QueryPlan::Node * node_affect_order)
 {
     chassert(!stack.empty());
     chassert(typeid_cast<const SortingStep *>(stack.back().node->step.get()));
diff --git a/tests/queries/0_stateless/02496_remove_redundant_order_by.sql b/tests/queries/0_stateless/02496_remove_redundant_order_by.sql
index 04718ab5eeb..d735139cafc 100644
--- a/tests/queries/0_stateless/02496_remove_redundant_order_by.sql
+++ b/tests/queries/0_stateless/02496_remove_redundant_order_by.sql
@@ -1,6 +1,5 @@
 SET allow_experimental_analyzer=1;
 SET optimize_duplicate_order_by_and_distinct=0;
--- set query_plan_enable_optimizations=0;
 
 SELECT '-- Disable query_plan_remove_redundant_order_by';
 SET query_plan_remove_redundant_order_by=0;