diff --git a/app/models/commentaire.rb b/app/models/commentaire.rb
index 86869f455..cfe068626 100644
--- a/app/models/commentaire.rb
+++ b/app/models/commentaire.rb
@@ -1,6 +1,5 @@
 class Commentaire < ApplicationRecord
   belongs_to :dossier, touch: true
-  belongs_to :champ
   belongs_to :piece_justificative
 
   mount_uploader :file, CommentaireFileUploader
@@ -13,6 +12,10 @@ class Commentaire < ApplicationRecord
 
   after_create :notify
 
+  def self.columns
+    super.reject { |c| c.name == "champ" }
+  end
+
   def header
     "#{sender}, #{I18n.l(created_at, format: '%d %b %Y %H:%M')}"
   end