diff --git a/app/components/attachment/edit_component.rb b/app/components/attachment/edit_component.rb
index a0dc0d3d6..117ea2a8c 100644
--- a/app/components/attachment/edit_component.rb
+++ b/app/components/attachment/edit_component.rb
@@ -55,7 +55,7 @@ class Attachment::EditComponent < ApplicationComponent
   end
 
   def destroy_attachment_path
-    attachment_path(champ: @champ)
+    attachment_path(dossier_id: champ&.dossier_id, stable_id: champ&.stable_id, row_id: champ&.row_id)
   end
 
   def attachment_input_class
diff --git a/app/controllers/attachments_controller.rb b/app/controllers/attachments_controller.rb
index 4e53e804f..721ec2cc2 100644
--- a/app/controllers/attachments_controller.rb
+++ b/app/controllers/attachments_controller.rb
@@ -21,11 +21,18 @@ class AttachmentsController < ApplicationController
     @attachment.purge_later
     flash.notice = 'La pièce jointe a bien été supprimée.'
 
-    @champ = Champ.find(params[:champ]) if params[:champ]
+    @champ = find_champ if params[:dossier_id]
 
     respond_to do |format|
       format.turbo_stream
       format.html { redirect_back(fallback_location: root_url) }
     end
   end
+
+  private
+
+  def find_champ
+    dossier = policy_scope(Dossier).includes(:champs).find(params[:dossier_id])
+    dossier.champs.find_by(stable_id: params[:stable_id], row_id: params[:row_id])
+  end
 end