diff --git a/mastodon/src/main/res/values-ja-rJP/strings.xml b/mastodon/src/main/res/values-ja-rJP/strings.xml
index 1fa201e22..5e2bf447d 100644
--- a/mastodon/src/main/res/values-ja-rJP/strings.xml
+++ b/mastodon/src/main/res/values-ja-rJP/strings.xml
@@ -568,4 +568,5 @@
 	<plurals name="x_posts_today">
 		<item quantity="other">今日の投稿 %,d 件</item>
 	</plurals>
+	<string name="error_playing_video">動画再生に失敗しました</string>
 </resources>