diff --git a/app/src/main/res/values-ja/strings.xml b/app/src/main/res/values-ja/strings.xml
index 260c6efe8..f211059ca 100644
--- a/app/src/main/res/values-ja/strings.xml
+++ b/app/src/main/res/values-ja/strings.xml
@@ -531,4 +531,7 @@
     <string name="also_clear_watch_positions">再生済みの位置の記憶も消去</string>
     <string name="gestures">ジェスチャー</string>
     <string name="behavior_when_minimized">最小化時の動作</string>
+    <string name="comments_count">コメント (%1$s)</string>
+    <string name="commentedTimeWithSeparator">• %1$s</string>
+    <string name="external_player">外部のプレイヤー</string>
 </resources>
\ No newline at end of file