diff --git a/llms/mlx_lm/convert.py b/llms/mlx_lm/convert.py
index 86a96447..f268913b 100644
--- a/llms/mlx_lm/convert.py
+++ b/llms/mlx_lm/convert.py
@@ -1,27 +1,23 @@
 # Copyright © 2023-2024 Apple Inc.
 
 import argparse
-from enum import Enum
 
-from .utils import convert, mixed_2_6, mixed_3_6
+from . import utils
+from .utils import convert
 
-
-class MixedQuants(Enum):
-    mixed_3_6 = "mixed_3_6"
-    mixed_2_6 = "mixed_2_6"
-
-    @classmethod
-    def recipe_names(cls):
-        return [member.name for member in cls]
+QUANT_RECIPES = [
+    "mixed_2_6",
+    "mixed_3_6",
+]
 
 
 def quant_args(arg):
-    try:
-        return MixedQuants[arg].value
-    except KeyError:
+    if arg not in QUANT_RECIPES:
         raise argparse.ArgumentTypeError(
-            f"Invalid q-recipe {arg!r}. Choose from: {MixedQuants.recipe_names()}"
+            f"Invalid q-recipe {arg!r}. Choose from: {QUANT_RECIPES}"
         )
+    else:
+        return getattr(utils, arg)
 
 
 def configure_parser() -> argparse.ArgumentParser:
@@ -50,7 +46,7 @@ def configure_parser() -> argparse.ArgumentParser:
     )
     parser.add_argument(
         "--quant-predicate",
-        help=f"Mixed-bit quantization recipe. Choices: {MixedQuants.recipe_names()}",
+        help=f"Mixed-bit quantization recipe. Choices: {QUANT_RECIPES}",
         type=quant_args,
         required=False,
     )