diff --git a/l10n/ja.js b/l10n/ja.js
index 8a981dbc5..feb4357dc 100644
--- a/l10n/ja.js
+++ b/l10n/ja.js
@@ -122,6 +122,7 @@ OC.L10N.register(
     "Apply filter" : "フィルターを適用",
     "Filter by tag" : "タグによるフィルター",
     "Filter by assigned user" : "割当ユーザーでフィルター",
+    "Unassigned" : "未割り当て",
     "Filter by due date" : "期限でフィルター",
     "Overdue" : "期限超過",
     "Next 24 hours" : "次の24時間",
diff --git a/l10n/ja.json b/l10n/ja.json
index cdbc41616..679b23c7f 100644
--- a/l10n/ja.json
+++ b/l10n/ja.json
@@ -120,6 +120,7 @@
     "Apply filter" : "フィルターを適用",
     "Filter by tag" : "タグによるフィルター",
     "Filter by assigned user" : "割当ユーザーでフィルター",
+    "Unassigned" : "未割り当て",
     "Filter by due date" : "期限でフィルター",
     "Overdue" : "期限超過",
     "Next 24 hours" : "次の24時間",