diff --git a/www/routes.js b/www/routes.js
index 8809d43..8fd3520 100644
--- a/www/routes.js
+++ b/www/routes.js
@@ -801,7 +801,7 @@ var routes = [
                             ]
                         }
                     ];
-                    if (platform_type == "cordova" && cordova.platformId != "browser") {
+                    if (platform_type == "cordova" && cordova.platformId != "browser" && typeof window.powerManagement != "undefined") {
                         settings.push({
                             setting: "wakelock",
                             title: "Keep screen on",