diff --git a/utils/gn/secondary/clang/lib/Headers/BUILD.gn b/utils/gn/secondary/clang/lib/Headers/BUILD.gn
index bac8baeea10..b169d148bb3 100644
--- a/utils/gn/secondary/clang/lib/Headers/BUILD.gn
+++ b/utils/gn/secondary/clang/lib/Headers/BUILD.gn
@@ -127,6 +127,7 @@ copy("Headers") {
     "avxvnniintrin.h",
     "bmi2intrin.h",
     "bmiintrin.h",
+    "builtins.h",
     "cet.h",
     "cetintrin.h",
     "cldemoteintrin.h",