diff --git a/locales/en-US.yml b/locales/en-US.yml
index 6d24bb5b41..f6861dcfb5 100644
--- a/locales/en-US.yml
+++ b/locales/en-US.yml
@@ -88,6 +88,7 @@ note: "Note"
 notes: "Notes"
 following: "Following"
 followers: "Followers"
+mutuals: "Mutuals"
 followsYou: "Follows you"
 createList: "Create list"
 manageLists: "Manage lists"
diff --git a/locales/index.d.ts b/locales/index.d.ts
index 177a3c8160..0456a947d3 100644
--- a/locales/index.d.ts
+++ b/locales/index.d.ts
@@ -368,6 +368,10 @@ export interface Locale extends ILocale {
      * フォロワー
      */
     "followers": string;
+    /**
+     * Mutuals
+     */
+    "mutuals": string;
     /**
      * フォローされています
      */
diff --git a/locales/ja-JP.yml b/locales/ja-JP.yml
index b4d47a449c..fd1a89b076 100644
--- a/locales/ja-JP.yml
+++ b/locales/ja-JP.yml
@@ -88,6 +88,7 @@ note: "ノート"
 notes: "ノート"
 following: "フォロー"
 followers: "フォロワー"
+mutuals: "Mutuals"
 followsYou: "フォローされています"
 createList: "リスト作成"
 manageLists: "リストの管理"