diff --git a/cordova/plugins/Device.d.ts b/cordova/plugins/Device.d.ts
index a25c1aadc8..1abb37596e 100644
--- a/cordova/plugins/Device.d.ts
+++ b/cordova/plugins/Device.d.ts
@@ -26,6 +26,9 @@ interface Device {
     version: string;
 	/** Get the device's manufacturer. */
 	manufacturer: string;
-}
+	/** Whether the device is running on a simulator. */
+	isVirtual: boolean;
+	/** Get the device hardware serial number. */
+	serial: string;}
 
 declare var device: Device;
\ No newline at end of file