diff --git a/www/background-mode.js b/www/background-mode.js
index 1640481..edfa25c 100644
--- a/www/background-mode.js
+++ b/www/background-mode.js
@@ -165,7 +165,9 @@ exports.moveToForeground = function () {
  * @return [ Void ]
  */
 exports.overrideBackButton = function () {
-    document.addEventListener('backbutton', this.moveToBackground, false);
+    document.addEventListener('backbutton', function() {
+        exports.moveToBackground();
+    }, false);
 };
 
 /**