diff --git a/worlds/tunic/__init__.py b/worlds/tunic/__init__.py
index 2ee58d42..250f6706 100644
--- a/worlds/tunic/__init__.py
+++ b/worlds/tunic/__init__.py
@@ -110,6 +110,13 @@ class TunicWorld(World):
     ut_can_gen_without_yaml = True  # class var that tells it to ignore the player yaml
 
     def generate_early(self) -> None:
+        try:
+            int(self.settings.disable_local_spoiler)
+        except AttributeError:
+            raise Exception("You have a TUNIC APWorld in your lib/worlds folder and custom_worlds folder.\n"
+                            "This would cause an error at the end of generation.\n"
+                            "Please remove one of them, most likely the one in lib/worlds.")
+
         check_options(self)
 
         if self.options.logic_rules >= LogicRules.option_no_major_glitches: