diff --git a/llvm/utils/gn/secondary/libcxx/include/BUILD.gn b/llvm/utils/gn/secondary/libcxx/include/BUILD.gn
index 6d26feef46f51e..a790cf24d2082a 100644
--- a/llvm/utils/gn/secondary/libcxx/include/BUILD.gn
+++ b/llvm/utils/gn/secondary/libcxx/include/BUILD.gn
@@ -183,6 +183,7 @@ if (current_toolchain == default_toolchain) {
       "__algorithm/ranges_move_backward.h",
       "__algorithm/ranges_none_of.h",
       "__algorithm/ranges_nth_element.h",
+      "__algorithm/ranges_partial_sort.h",
       "__algorithm/ranges_partial_sort_copy.h",
       "__algorithm/ranges_partition.h",
       "__algorithm/ranges_partition_copy.h",