diff --git a/iron-multi-selectable.html b/iron-multi-selectable.html
index 3634002..8f19321 100644
--- a/iron-multi-selectable.html
+++ b/iron-multi-selectable.html
@@ -46,7 +46,7 @@
     },
 
     observers: [
-      '_updateSelected(selectedValues)'
+      '_updateSelected(selectedValues.*)'
     ],
 
     /**