diff --git a/ItemList.py b/ItemList.py
index 5c4aa40d..29ef71da 100644
--- a/ItemList.py
+++ b/ItemList.py
@@ -545,7 +545,7 @@ def fill_prizes(world, attempts=15):
                 continue
             break
         else:
-            raise FillError('Unable to place dungeon prizes')
+            raise FillError("Unable to place dungeon prizes: {}".format(", ".join(list(map(lambda d: d.hint_text, prize_locs)))))
 
 
 def set_up_shops(world, player):