diff --git a/src/js/mods/mod_interface.js b/src/js/mods/mod_interface.js
index ac8d6abd..da3deee3 100644
--- a/src/js/mods/mod_interface.js
+++ b/src/js/mods/mod_interface.js
@@ -372,7 +372,7 @@ export class ModInterface {
      * @param {typeof GameState} stateClass
      */
     registerGameState(stateClass) {
-        this.modManager.app.stateMgr.register(stateClass);
+        this.modLoader.app.stateMgr.register(stateClass);
     }
 
     /**