diff --git a/BaseClasses.py b/BaseClasses.py
index 7c12a94d..02d050c6 100644
--- a/BaseClasses.py
+++ b/BaseClasses.py
@@ -487,8 +487,10 @@ class MultiWorld():
     def get_unfilled_locations_for_players(self, location_names: List[str], players: Iterable[int]):
         for player in players:
             if not location_names:
-                location_names = [location.name for location in self.get_unfilled_locations(player)]
-            for location_name in location_names:
+                valid_locations = [location.name for location in self.get_unfilled_locations(player)]
+            else:
+                valid_locations = location_names
+            for location_name in valid_locations:
                 location = self._location_cache.get((location_name, player), None)
                 if location is not None and location.item is None:
                     yield location