diff --git a/app/javascript/submission_form/verification_step.vue b/app/javascript/submission_form/verification_step.vue
index 1f711c5e..29b3b590 100644
--- a/app/javascript/submission_form/verification_step.vue
+++ b/app/javascript/submission_form/verification_step.vue
@@ -119,6 +119,7 @@ export default {
         docId: this.eidEasyData.doc_id,
         language: this.locale,
         countryCode: this.countryCode,
+        sandbox: ['demo.docuseal.tech'].includes(location.host),
         enabledMethods: {
           signature: this.eidEasyData.available_methods
         },