diff --git a/overlays/inetutils-darwin-fix/default.nix b/overlays/inetutils-darwin-fix/default.nix
new file mode 100644
index 0000000..b86d0af
--- /dev/null
+++ b/overlays/inetutils-darwin-fix/default.nix
@@ -0,0 +1,10 @@
+{ ... }:
+final: prev: {
+  inetutils = prev.inetutils.overrideAttrs (old: {
+    # Fix gnulib variadic macro error on Darwin with newer Clang
+    # The error.h macro __gl_error_call1 has issues with __VA_ARGS__
+    # and -Werror,-Wformat-security causes build failures
+    NIX_CFLAGS_COMPILE = (old.NIX_CFLAGS_COMPILE or "") + " -Wno-error";
+    hardeningDisable = (old.hardeningDisable or [ ]) ++ [ "format" ];
+  });
+}