diff --git a/app/models/concerns/account_finder_concern.rb b/app/models/concerns/account_finder_concern.rb
index 561c7ab9f..2e8a7fb37 100644
--- a/app/models/concerns/account_finder_concern.rb
+++ b/app/models/concerns/account_finder_concern.rb
@@ -44,7 +44,7 @@ module AccountFinderConcern
     end
 
     def with_usernames
-      Account.where.not(username: [nil, ''])
+      Account.where.not(username: '')
     end
 
     def matching_username