diff --git a/l10n/ja.js b/l10n/ja.js
index 152302a..a772454 100644
--- a/l10n/ja.js
+++ b/l10n/ja.js
@@ -26,6 +26,7 @@ OC.L10N.register(
     "Unknown error" : "不明なエラー",
     "Comments" : "コメント",
     "Author" : "作者",
-    "Owner" : "所有者"
+    "Owner" : "所有者",
+    "Click to expand comment" : "コメントを展開するにはクリックしてください"
 },
 "nplurals=1; plural=0;");
diff --git a/l10n/ja.json b/l10n/ja.json
index 68c42d2..1eebb6b 100644
--- a/l10n/ja.json
+++ b/l10n/ja.json
@@ -24,6 +24,7 @@
     "Unknown error" : "不明なエラー",
     "Comments" : "コメント",
     "Author" : "作者",
-    "Owner" : "所有者"
+    "Owner" : "所有者",
+    "Click to expand comment" : "コメントを展開するにはクリックしてください"
 },"pluralForm" :"nplurals=1; plural=0;"
 }
\ No newline at end of file