diff --git a/demos/autocomplete/combobox.html b/demos/autocomplete/combobox.html
index f89f260ebc..69be702206 100644
--- a/demos/autocomplete/combobox.html
+++ b/demos/autocomplete/combobox.html
@@ -76,7 +76,8 @@
 			},
 
 			_createShowAllButton: function() {
-				var wasOpen = false;
+				var input = this.input,
+					wasOpen = false;
 
 				$( "<a>" )
 					.attr( "tabIndex", -1 )