diff --git a/app/models/list.rb b/app/models/list.rb
index 7dc96f01b3c..fcef49e6e9a 100644
--- a/app/models/list.rb
+++ b/app/models/list.rb
@@ -10,7 +10,7 @@
 #  created_at     :datetime         not null
 #  updated_at     :datetime         not null
 #  replies_policy :integer          default("list"), not null
-#  exclusive      :boolean          default(FALSE)
+#  exclusive      :boolean          default(FALSE), not null
 #
 
 class List < ApplicationRecord