diff --git a/packages/effects/layouts/src/widgets/timezone/timezone-button.vue b/packages/effects/layouts/src/widgets/timezone/timezone-button.vue
index 4b2a56e0..11798ed5 100644
--- a/packages/effects/layouts/src/widgets/timezone/timezone-button.vue
+++ b/packages/effects/layouts/src/widgets/timezone/timezone-button.vue
@@ -22,12 +22,8 @@ interface Props {
   timezone?: string;
 }
 
-interface Listener {
-  change: (timezone: string) => void;
-}
-
 const props = defineProps<Props>();
-const emit = defineEmits<Listener>();
+const emit = defineEmits<{ change: [string] }>();
 
 const TimezoneIcon = createIconifyIcon('fluent-mdl2:world-clock');