diff --git a/en.json b/en.json
index 80fd281db71bba0ae038729d0e6107199505209c..da547836a9dea59eb91388f41821759495c5f604 100644
--- a/en.json
+++ b/en.json
@@ -82,6 +82,7 @@
                     "added_by": "added by",
                     "removed_by": "removed by"
                 },
+                "unknown_user": "<Unknown User>",
                 "bot": "bot"
             },
             "groups": {