diff --git a/Toby Doom Launcher.py b/Toby Doom Launcher.py
index 1c6d537..2b7d7f3 100755
--- a/Toby Doom Launcher.py	
+++ b/Toby Doom Launcher.py	
@@ -2335,7 +2335,7 @@ class DoomLauncher(QMainWindow):
         # Then add maps and other game-specific files
         if "Heretic" in selectedGame:
             if "Toby Heretic" in selectedGame:
-                baseFiles.append(str(self.gamePath / "Addons/MAPS/TobyHereticLevels.wad"))
+                baseFiles.append(str(self.gamePath / "Addons/MAPS/TobyHereticLevels.pk3"))
         elif "Hexen" in selectedGame:
             if "Toby Hexen" in selectedGame:
                 baseFiles.append(str(self.gamePath / "Addons/MAPS/TobyHexen.pk3"))