diff --git a/llvm/utils/gn/secondary/libcxx/include/BUILD.gn b/llvm/utils/gn/secondary/libcxx/include/BUILD.gn
index d79c88a58f32..ffbd0944db24 100644
--- a/llvm/utils/gn/secondary/libcxx/include/BUILD.gn
+++ b/llvm/utils/gn/secondary/libcxx/include/BUILD.gn
@@ -254,6 +254,7 @@ if (current_toolchain == default_toolchain) {
       "__ranges/ref_view.h",
       "__ranges/size.h",
       "__ranges/subrange.h",
+      "__ranges/transform_view.h",
       "__ranges/view_interface.h",
       "__split_buffer",
       "__std_stream",