diff --git a/src/layouts/tpa-submit/contact-details-drawer/contact-details-drawer.vue b/src/layouts/tpa-submit/contact-details-drawer/contact-details-drawer.vue
index db4e13cb..b66f4c8a 100644
--- a/src/layouts/tpa-submit/contact-details-drawer/contact-details-drawer.vue
+++ b/src/layouts/tpa-submit/contact-details-drawer/contact-details-drawer.vue
@@ -38,6 +38,8 @@
                 inputId="phoneNumber"
                 :cmsWidgetName="widget.phoneNumberQuestion"
                 isRequired
+                mask="###-###-####"
+                disableAutoFill
                 :validationRules="rules.phoneNumber" />
         </template>
     </modal>