diff --git a/be/src/vec/common/sort/heap_sorter.h b/be/src/vec/common/sort/heap_sorter.h
index 3d8b3cfd60ae6b..a163afa379aabf 100644
--- a/be/src/vec/common/sort/heap_sorter.h
+++ b/be/src/vec/common/sort/heap_sorter.h
@@ -49,7 +49,6 @@ class HeapSorter final : public Sorter {
     }
 
 private:
-    Status _prepare_sort_descs(Block* block);
     void _do_filter(MergeSortCursorImpl& block, size_t num_rows);
     size_t _data_size = 0;
     size_t _heap_size = 0;