diff --git a/pkgs/development/python-modules/mlx-lm/default.nix b/pkgs/development/python-modules/mlx-lm/default.nix
index 1143ebebd08f..91ffec0c3650 100644
--- a/pkgs/development/python-modules/mlx-lm/default.nix
+++ b/pkgs/development/python-modules/mlx-lm/default.nix
@@ -82,5 +82,9 @@ buildPythonPackage (finalAttrs: {
     homepage = "https://github.com/ml-explore/mlx-lm";
     changelog = "https://github.com/ml-explore/mlx-lm/releases/tag/${finalAttrs.src.tag}";
     license = lib.licenses.mit;
+    badPlatforms = [
+      # Building for x86_64 on macOS is not supported by mlx (dependency)
+      "x86_64-darwin"
+    ];
   };
 })