diff --git a/CHANGELOG.md b/CHANGELOG.md
index 605b8af92c..948ee2b51f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,6 +14,9 @@
 
 ## 202x.x.x (Unreleased)
 
+### Note
+- 外部サイトからプラグインをインストールする場合のパスが`/install-extentions`から`/install-extensions`に変わります。現時点では以前のパスも利用できますが、非推奨です。
+
 ### General
 - Feat: [mCaptcha](https://github.com/mCaptcha/mCaptcha)のサポートを追加
 - Fix: リストライムラインの「リノートを表示」が正しく機能しない問題を修正
diff --git a/packages/frontend/src/global/router/definition.ts b/packages/frontend/src/global/router/definition.ts
index c8448ce198..8e1c178ea2 100644
--- a/packages/frontend/src/global/router/definition.ts
+++ b/packages/frontend/src/global/router/definition.ts
@@ -332,7 +332,12 @@ const routes = [{
 	component: page(() => import('@/pages/registry.vue')),
 }, {
 	path: '/install-extentions',
-	component: page(() => import('@/pages/install-extentions.vue')),
+	// Note: This path is kept for compatibility. It may be deleted.
+	component: page(() => import('@/pages/install-extensions.vue')),
+	loginRequired: true,
+}, {
+	path: '/install-extensions',
+	component: page(() => import('@/pages/install-extensions.vue')),
 	loginRequired: true,
 }, {
 	path: '/admin/user/:userId',
diff --git a/packages/frontend/src/pages/install-extentions.vue b/packages/frontend/src/pages/install-extensions.vue
similarity index 100%
rename from packages/frontend/src/pages/install-extentions.vue
rename to packages/frontend/src/pages/install-extensions.vue