diff --git a/app/javascript/submission_form/form.vue b/app/javascript/submission_form/form.vue
index a06ca015..c2eb93e8 100644
--- a/app/javascript/submission_form/form.vue
+++ b/app/javascript/submission_form/form.vue
@@ -1201,7 +1201,7 @@ export default {
     async submitStep (e) {
       this.isSubmitting = true
 
-      const forceComplete = e.submitter?.getAttribute('name') === 'completed'
+      const forceComplete = e?.submitter?.getAttribute('name') === 'completed'
 
       if (forceComplete) {
         this.isSubmittingComplete = true