diff --git a/DungeonGenerator.py b/DungeonGenerator.py
index 72938538..55a4b9ec 100644
--- a/DungeonGenerator.py
+++ b/DungeonGenerator.py
@@ -680,7 +680,7 @@ def create_graph_piece_from_state(door, o_state, b_state, proposed_map, exceptio
 
 
 def filter_for_potential_bk_locations(locations, world, player):
-    return [x for x in locations if '- Big Chest' not in x.name and not not reserved_location(x, world, player) and
+    return [x for x in locations if '- Big Chest' not in x.name and not reserved_location(x, world, player) and
             not x.forced_item and not prize_or_event(x) and not blind_boss_unavail(x, locations, world, player)]
 
 
diff --git a/Fill.py b/Fill.py
index 65aa2f85..339a01ce 100644
--- a/Fill.py
+++ b/Fill.py
@@ -167,7 +167,7 @@ def valid_key_placement(item, location, itempool, world):
         cr_count = world.crystals_needed_for_gt[location.player]
         return key_logic.check_placement(unplaced_keys, location if item.bigkey else None, prize_loc, cr_count)
     else:
-        return item.is_inside_dungeon_item(world)
+        return not item.is_inside_dungeon_item(world)  # todo: big deal for ambrosia to fix this
 
 
 def valid_reserved_placement(item, location, world):