diff --git a/src/style_manager/model/PropertySelect.js b/src/style_manager/model/PropertySelect.js
index 33d9151c6..9e87193f6 100644
--- a/src/style_manager/model/PropertySelect.js
+++ b/src/style_manager/model/PropertySelect.js
@@ -2,7 +2,7 @@ import Property from './PropertyRadio';
 
 export default Property.extend({
   defaults: () => ({
-    ...Property.prototype.defaults,
+    ...Property.prototype.defaults(),
     full: 0
   })
 });