diff --git a/tools/fetch_them_macos_headers.zig b/tools/fetch_them_macos_headers.zig
index d2b7dd2f933e50d25f5f46f53888abad9986c8f3..bc7f137ee74674022c3ff0d6bd367b013b463b05 100644
--- a/tools/fetch_them_macos_headers.zig
+++ b/tools/fetch_them_macos_headers.zig
@@ -24,6 +24,7 @@ const OsVer = enum(u32) {
     sonoma = 14,
     sequoia = 15,
     tahoe = 26,
+    golden_gate = 27,
 };
 
 const Target = struct {