diff --git a/examples/combobox/aria1.1pattern/js/listbox-combobox.js b/examples/combobox/aria1.1pattern/js/listbox-combobox.js
index 5b0660ba9c..146589e698 100644
--- a/examples/combobox/aria1.1pattern/js/listbox-combobox.js
+++ b/examples/combobox/aria1.1pattern/js/listbox-combobox.js
@@ -45,6 +45,7 @@ aria.ListboxCombobox.prototype.setupEvents = function () {
   this.input.addEventListener('keyup', this.checkKey.bind(this));
   this.input.addEventListener('keydown', this.setActiveItem.bind(this));
   this.input.addEventListener('focus', this.checkShow.bind(this));
+  this.input.addEventListener('blur', this.checkSelection.bind(this));
   this.listbox.addEventListener('click', this.clickItem.bind(this));
 };
 
@@ -152,6 +153,7 @@ aria.ListboxCombobox.prototype.setActiveItem = function (evt) {
       this.selectItem(activeItem);
       return;
     case aria.KeyCode.TAB:
+      this.checkSelection();
       this.hideListbox();
       return;
     default:
@@ -229,6 +231,14 @@ aria.ListboxCombobox.prototype.hideListbox = function () {
   this.onHide();
 };
 
+aria.ListboxCombobox.prototype.checkSelection = function() {
+  if (this.activeIndex < 0) {
+    return;
+  }
+  var activeItem = this.getItemAt(this.activeIndex);
+  this.selectItem(activeItem);
+};
+
 aria.ListboxCombobox.prototype.autocompleteItem = function () {
   var autocompletedItem = this.listbox.querySelector('.focused');
   var inputText = this.input.value;