diff --git a/app/controllers/new_gestionnaire/dossiers_controller.rb b/app/controllers/new_gestionnaire/dossiers_controller.rb
index 99ce6f033..69ea7ee99 100644
--- a/app/controllers/new_gestionnaire/dossiers_controller.rb
+++ b/app/controllers/new_gestionnaire/dossiers_controller.rb
@@ -87,7 +87,7 @@ module NewGestionnaire
     end
 
     def avis_params
-      params.require(:avis).permit(:email, :introduction)
+      params.require(:avis).permit(:email, :introduction, :confidentiel)
     end
 
     def champs_private_params
diff --git a/app/views/new_gestionnaire/dossiers/instruction.html.haml b/app/views/new_gestionnaire/dossiers/instruction.html.haml
index c07dcbe5c..19955f412 100644
--- a/app/views/new_gestionnaire/dossiers/instruction.html.haml
+++ b/app/views/new_gestionnaire/dossiers/instruction.html.haml
@@ -8,8 +8,12 @@
     = form_for Avis.new, url: avis_dossier_path(@dossier.procedure, @dossier), html: { class: 'form' } do |f|
       = f.email_field :email, placeholder: 'Adresse email', required: true
       = f.text_area :introduction, rows: 3, value: 'Bonjour, merci de me donner votre avis sur ce dossier.', required: true
-      .send-wrapper
-        = f.submit 'Demander un avis', class: 'button send'
+      .flex.justify-between.align-baseline
+        .confidentiel-wrapper
+          = f.label :confidentiel, 'Cet avis est'
+          = f.select :confidentiel, [['partagé avec les autres experts', false], ['confidentiel', true]]
+        .send-wrapper
+          = f.submit 'Demander un avis', class: 'button send'
 
   = render partial: 'new_gestionnaire/avis/avis_list', locals: { avis: @dossier.avis }
 
diff --git a/spec/controllers/new_gestionnaire/dossiers_controller_spec.rb b/spec/controllers/new_gestionnaire/dossiers_controller_spec.rb
index 084a52ed2..988e8e05a 100644
--- a/spec/controllers/new_gestionnaire/dossiers_controller_spec.rb
+++ b/spec/controllers/new_gestionnaire/dossiers_controller_spec.rb
@@ -1,6 +1,8 @@
 require 'spec_helper'
 
 describe NewGestionnaire::DossiersController, type: :controller do
+  render_views
+
   let(:gestionnaire) { create(:gestionnaire) }
   let(:procedure) { create(:procedure, :published, gestionnaires: [gestionnaire]) }
   let(:dossier) { create(:dossier, :replied, procedure: procedure) }
@@ -122,12 +124,13 @@ describe NewGestionnaire::DossiersController, type: :controller do
       post :create_avis, params: {
         procedure_id: procedure.id,
         dossier_id: dossier.id,
-        avis: { email: 'email@a.com', introduction: 'intro' }
+        avis: { email: 'email@a.com', introduction: 'intro', confidentiel: true }
       }
     end
 
     it { expect(saved_avis.email).to eq('email@a.com') }
     it { expect(saved_avis.introduction).to eq('intro') }
+    it { expect(saved_avis.confidentiel).to eq(true) }
     it { expect(saved_avis.dossier).to eq(dossier) }
     it { expect(saved_avis.claimant).to eq(gestionnaire) }
     it { expect(response).to redirect_to(instruction_dossier_path(dossier.procedure, dossier)) }