diff --git a/src/client/app.vue b/src/client/app.vue
index 4e89aa4351..d515ac02d3 100644
--- a/src/client/app.vue
+++ b/src/client/app.vue
@@ -76,7 +76,7 @@
 	<div class="contents">
 		<main ref="main">
 			<div class="content">
-				<transition name="page" mode="out-in">
+				<transition name="page" mode="out-in" @enter="onTransition">
 					<keep-alive :include="['index']">
 						<router-view></router-view>
 					</keep-alive>
@@ -258,6 +258,10 @@ export default Vue.extend({
 			if (this.canBack) window.history.back();
 		},
 
+		onTransition() {
+			if (window._scroll) window._scroll();
+		},
+
 		post() {
 			this.$root.post();
 		},
diff --git a/src/client/router.ts b/src/client/router.ts
index 5ab4fa0cb6..82451260c3 100644
--- a/src/client/router.ts
+++ b/src/client/router.ts
@@ -56,13 +56,12 @@ export const router = new VueRouter({
 	// 通常の使い方をすると scroll メソッドの behavior を設定できないため、自前で window.scroll するようにする
 	// setTimeout しないと、アニメーション(トランジション)の関係でうまく動かない
 	scrollBehavior(to, from, savedPosition) {
-		setTimeout(() => {
+		window._scroll = () => { // さらにHacky
 			if (savedPosition) {
 				window.scroll({ top: savedPosition.y, behavior: 'instant' });
 			} else {
 				window.scroll({ top: 0, behavior: 'instant' });
 			}
-		}, 600);
-		return;
+		};
 	}
 });