diff --git a/src/common-components/button-question/button-question.vue b/src/common-components/button-question/button-question.vue
index a6fb6f69..5457a389 100644
--- a/src/common-components/button-question/button-question.vue
+++ b/src/common-components/button-question/button-question.vue
@@ -206,7 +206,7 @@ export default {
   },
   methods: {
       formatString(str) {
-          return str?.replaceAll(" ", "-");
+          return String(str).replaceAll(" ", "-");
       },
       setLastValuePushedToGa(lastValuePushedToGa) {
           this.lastValuePushedToGa = lastValuePushedToGa;