diff --git a/llvm/utils/gn/build/BUILD.gn b/llvm/utils/gn/build/BUILD.gn
index 91ea275b3fe97b7a301d271e9e7ec39fa98f2787..45ece9279ec849a61557680506ef0f37d39b2df6 100644
--- a/llvm/utils/gn/build/BUILD.gn
+++ b/llvm/utils/gn/build/BUILD.gn
@@ -10,6 +10,7 @@ config("compiler_defaults") {
     defines += [ "NDEBUG" ]
   }
 
+  asmflags = target_flags
   cflags = target_flags
   ldflags = target_flags + target_ldflags