diff --git a/src/components/Button/Button.vue b/src/components/Button/Button.vue
index bbc71e941a..76d4c1672f 100644
--- a/src/components/Button/Button.vue
+++ b/src/components/Button/Button.vue
@@ -564,6 +564,7 @@ export default {
 			opacity: 1;
 		}
 		&.button-vue--vue-tertiary-on-primary {
+			box-shadow: 0 0 0 2px var(--color-primary-text);
 			border-radius: var(--border-radius);
 			opacity: 1;
 			background-color: transparent;