diff --git a/llvm/utils/gn/secondary/libcxx/include/BUILD.gn b/llvm/utils/gn/secondary/libcxx/include/BUILD.gn
index db8130181a002..6bed88ff0acf6 100644
--- a/llvm/utils/gn/secondary/libcxx/include/BUILD.gn
+++ b/llvm/utils/gn/secondary/libcxx/include/BUILD.gn
@@ -288,6 +288,7 @@ if (current_toolchain == default_toolchain) {
       "__coroutine/noop_coroutine_handle.h",
       "__coroutine/trivial_awaitables.h",
       "__debug",
+      "__debug_utils/randomize_range.h",
       "__errc",
       "__filesystem/copy_options.h",
       "__filesystem/directory_entry.h",