diff --git a/website/users/admin.py b/website/users/admin.py
index 38e22c85..37597bf6 100644
--- a/website/users/admin.py
+++ b/website/users/admin.py
@@ -167,7 +167,7 @@ def get_count_members(self, obj):
 
     def get_members(self, obj):
         """Get the members of a group."""
-        return ",".join(obj.user_set.values_list("name", flat=True))
+        return ",".join(str(u) for u in list(obj.user_set.all()))
 
     get_members.short_description = "Members"