diff --git a/app/controllers/users/dossiers_controller.rb b/app/controllers/users/dossiers_controller.rb
index 2b059e156..89a665419 100644
--- a/app/controllers/users/dossiers_controller.rb
+++ b/app/controllers/users/dossiers_controller.rb
@@ -106,7 +106,7 @@ module Users
       sanitized_siret = siret_model.siret
       begin
         etablissement = APIEntrepriseService.create_etablissement(@dossier, sanitized_siret, current_user.id)
-      rescue APIEntreprise::API::Error::RequestFailed, APIEntreprise::API::Error::BadGateway, APIEntreprise::API::Error::TimedOut
+      rescue APIEntreprise::API::Error::RequestFailed, APIEntreprise::API::Error::BadGateway, APIEntreprise::API::Error::TimedOut, APIEntreprise::API::Error::ServiceUnavailable
         return render_siret_error(t('errors.messages.siret_network_error'))
       end
       if etablissement.nil?