diff --git a/src/definitions/modules/dropdown.js b/src/definitions/modules/dropdown.js
index b55bbd68e..24d731bba 100644
--- a/src/definitions/modules/dropdown.js
+++ b/src/definitions/modules/dropdown.js
@@ -1211,9 +1211,6 @@ $.fn.dropdown = function(parameters) {
         },
 
         determine: {
-          pageLostFocus: function() {
-            pageLostFocus = (document.activeElement === this);
-          },
           selectAction: function(text, value) {
             module.verbose('Determining action', settings.action);
             if( $.isFunction( module.action[settings.action] ) ) {