diff --git a/app/assets/javascripts/select-kit/components/select-kit/select-kit-header.js.es6 b/app/assets/javascripts/select-kit/components/select-kit/select-kit-header.js.es6
index 0cd20b26dda..00ffa0be873 100644
--- a/app/assets/javascripts/select-kit/components/select-kit/select-kit-header.js.es6
+++ b/app/assets/javascripts/select-kit/components/select-kit/select-kit-header.js.es6
@@ -18,7 +18,7 @@ export default Ember.Component.extend({
 
   isNone: Ember.computed.none("computedContent.value"),
 
-  ariaHasPopup: true,
+  ariaHasPopup: "true",
 
   ariaLabel: Ember.computed.or("computedContent.ariaLabel", "sanitizedTitle"),