diff --git a/apps/perms/serializers/permission.py b/apps/perms/serializers/permission.py
index 35d6ecacd..74a7fac26 100644
--- a/apps/perms/serializers/permission.py
+++ b/apps/perms/serializers/permission.py
@@ -190,8 +190,8 @@ class AssetPermissionListSerializer(AssetPermissionSerializer):
 
     class Meta(AssetPermissionSerializer.Meta):
         amount_fields = ["users_amount", "user_groups_amount", "assets_amount", "nodes_amount"]
-        remove_fields = {"users", "assets", "nodes", "user_groups"}
-        fields = list(set(AssetPermissionSerializer.Meta.fields + amount_fields) - remove_fields)
+        fields = [item for item in (AssetPermissionSerializer.Meta.fields + amount_fields) if
+                  item not in ["users", "assets", "nodes", "user_groups"]]
 
     @classmethod
     def setup_eager_loading(cls, queryset):