diff --git a/utils/gn/secondary/lld/MachO/BUILD.gn b/utils/gn/secondary/lld/MachO/BUILD.gn
index 713ca868bf5..67c4939f90a 100644
--- a/utils/gn/secondary/lld/MachO/BUILD.gn
+++ b/utils/gn/secondary/lld/MachO/BUILD.gn
@@ -17,7 +17,10 @@ static_library("MachO2") {
     "//llvm/lib/Support",
     "//llvm/lib/Target:TargetsToBuild",
   ]
-  include_dirs = [ "." ]
+  include_dirs = [
+    ".",
+    "//libunwind/include",
+  ]
   sources = [
     "Arch/X86_64.cpp",
     "Driver.cpp",