diff --git a/app/controllers/users/dossiers_controller.rb b/app/controllers/users/dossiers_controller.rb
index 8decc82ca..85209ca1e 100644
--- a/app/controllers/users/dossiers_controller.rb
+++ b/app/controllers/users/dossiers_controller.rb
@@ -39,7 +39,7 @@ class Users::DossiersController < UsersController
     unless params[:procedure_path].nil?
       procedure_path = ProcedurePath.where(path: params[:procedure_path]).last
 
-      if procedure_path.nil?
+      if procedure_path.nil? || procedure_path.procedure.nil?
         flash.alert = "Procédure inconnue"
         return redirect_to root_path
       else
diff --git a/spec/controllers/users/dossiers_controller_spec.rb b/spec/controllers/users/dossiers_controller_spec.rb
index abf8361a6..881184469 100644
--- a/spec/controllers/users/dossiers_controller_spec.rb
+++ b/spec/controllers/users/dossiers_controller_spec.rb
@@ -152,7 +152,7 @@ describe Users::DossiersController, type: :controller do
   end
 
   describe 'GET #commencer' do
-    subject { get :commencer, params: {procedure_path: procedure.path} }
+    subject { get :commencer, params: { procedure_path: procedure.path } }
 
     it { expect(subject.status).to eq 302 }
     it { expect(subject).to redirect_to new_users_dossier_path(procedure_id: procedure.id) }
@@ -166,6 +166,12 @@ describe Users::DossiersController, type: :controller do
 
       it { expect(subject.status).to eq 200 }
     end
+
+    context 'when procedure is hidden' do
+      let(:procedure) { create(:procedure, :published, hidden_at: DateTime.now) }
+
+      it { expect(subject).to redirect_to(root_path) }
+    end
   end
 
   describe 'POST #siret_informations' do