diff --git a/src/Processors/QueryPlan/Optimizations/enableMemoryBoundMerging.cpp b/src/Processors/QueryPlan/Optimizations/enableMemoryBoundMerging.cpp
index b205d054d76..83d6e08d3c9 100644
--- a/src/Processors/QueryPlan/Optimizations/enableMemoryBoundMerging.cpp
+++ b/src/Processors/QueryPlan/Optimizations/enableMemoryBoundMerging.cpp
@@ -67,7 +67,7 @@ void enableMemoryBoundMerging(QueryPlan::Node & node)
     {
         if (mergine_aggeregated->memoryBoundMergingWillBeUsed())
         {
-            sort_description = mergine_aggeregated->getSortDescription();
+            sort_description = mergine_aggeregated->getGroupBySortDescription();
         }
     }