diff --git a/src/client/app/init.ts b/src/client/app/init.ts
index ed0fe4826..560ab1a09 100644
--- a/src/client/app/init.ts
+++ b/src/client/app/init.ts
@@ -102,7 +102,9 @@ export default (callback: (launch: (router: VueRouter, api?: (os: MiOS) => API)
 			//#region Dark/Light
 			Vue.mixin({
 				data() {
-					_unwatchDarkmode_: null
+					return {
+						_unwatchDarkmode_: null
+					};
 				},
 				mounted() {
 					const apply = v => {