diff --git a/studio/backend/utils/models/model_config.py b/studio/backend/utils/models/model_config.py
index f5b8dfc823..6ddea6ea0b 100644
--- a/studio/backend/utils/models/model_config.py
+++ b/studio/backend/utils/models/model_config.py
@@ -972,7 +972,7 @@ def list_gguf_variants(
         # (0, ...) recommended | (1, 0, size) other UD | (1, 1, size) non-UD
         return (0 if is_recommended else 1, 0 if is_ud else 1, v.size_bytes)
 
-    variants.sort(key=_sort_key)
+    variants.sort(key = _sort_key)
 
     return variants, has_vision