diff --git a/identifier.py b/identifier.py
index 9d5d779..a20dda0 100644
--- a/identifier.py
+++ b/identifier.py
@@ -117,7 +117,7 @@ async def lookup_slackid_brother(slack_id: str) -> scroll_util.Brother:
         try:
             scroll = db[slack_id]
             return scroll_util.find_by_scroll(scroll)
-        except ValueError:
+        except (KeyError, ValueError):
             raise scroll_util.BrotherNotFound("Slack id {} not tied to brother".format(slack_id))