diff --git a/modules/ags/config/ts/misc/popup.ts b/modules/ags/config/ts/misc/popup.ts
index 13df374..a729b2f 100644
--- a/modules/ags/config/ts/misc/popup.ts
+++ b/modules/ags/config/ts/misc/popup.ts
@@ -92,7 +92,10 @@ export class PopupWindow<
             setup: () => {
                 const id = App.connect('config-parsed', () => {
                     // Set close delay dynamically
-                    App.closeWindowDelay[name] = transition_duration;
+                    App.closeWindowDelay = {
+                        ...App.closeWindowDelay,
+                        [name]: transition_duration,
+                    };
 
                     // Add way to make window open on startup
                     if (visible) {