diff --git a/llvm/utils/gn/secondary/libcxx/include/BUILD.gn b/llvm/utils/gn/secondary/libcxx/include/BUILD.gn
index e76ec39fbbc8..05a5a11aecc3 100644
--- a/llvm/utils/gn/secondary/libcxx/include/BUILD.gn
+++ b/llvm/utils/gn/secondary/libcxx/include/BUILD.gn
@@ -101,7 +101,6 @@ if (current_toolchain == default_toolchain) {
       "__ranges/size.h",
       "__ranges/view.h",
       "__split_buffer",
-      "__sso_allocator",
       "__std_stream",
       "__string",
       "__support/android/locale_bionic.h",