diff --git a/llvm/utils/gn/secondary/libcxx/include/BUILD.gn b/llvm/utils/gn/secondary/libcxx/include/BUILD.gn
index 9dc06399877f8a..210b26e8f166b2 100644
--- a/llvm/utils/gn/secondary/libcxx/include/BUILD.gn
+++ b/llvm/utils/gn/secondary/libcxx/include/BUILD.gn
@@ -516,6 +516,7 @@ if (current_toolchain == default_toolchain) {
       "__ios/fpos.h",
       "__iterator/access.h",
       "__iterator/advance.h",
+      "__iterator/aliasing_iterator.h",
       "__iterator/back_insert_iterator.h",
       "__iterator/bounded_iter.h",
       "__iterator/common_iterator.h",