diff --git a/Mystery.py b/Mystery.py
index f6d810b2..0e07433d 100644
--- a/Mystery.py
+++ b/Mystery.py
@@ -417,9 +417,8 @@ def roll_settings(weights):
     ret.remote_items = get_choice('remote_items', weights, False)
 
     if get_choice("local_keys", weights, "l" in dungeon_items):
-        ret.local_items = item_name_groups["Small Keys"] if "s" in dungeon_items else set() \
-                                                                                      | item_name_groups[
-                                                                                          "Big Keys"] if "b" in dungeon_items else set()
+        ret.local_items = (item_name_groups["Small Keys"] if "s" in dungeon_items else set()) \
+                          | item_name_groups["Big Keys"] if "b" in dungeon_items else set()
     else:
         ret.local_items = set()
     for item_name in weights.get('local_items', []):