diff --git a/lib/Cake/Network/CakeRequest.php b/lib/Cake/Network/CakeRequest.php
index 6adb2842b..8793944eb 100644
--- a/lib/Cake/Network/CakeRequest.php
+++ b/lib/Cake/Network/CakeRequest.php
@@ -107,7 +107,7 @@ class CakeRequest implements ArrayAccess {
 			'Android', 'AvantGo', 'BlackBerry', 'DoCoMo', 'Fennec', 'iPod', 'iPhone',
 			'J2ME', 'MIDP', 'NetFront', 'Nokia', 'Opera Mini', 'Opera Mobi', 'PalmOS', 'PalmSource',
 			'portalmmm', 'Plucker', 'ReqwirelessWeb', 'SonyEricsson', 'Symbian', 'UP\\.Browser',
-			'webOS', 'Windows CE', 'Xiino'
+			'webOS', 'Windows CE', 'Windows Phone OS', 'Xiino'
 		))
 	);
 
diff --git a/lib/Cake/Test/Case/Network/CakeRequestTest.php b/lib/Cake/Test/Case/Network/CakeRequestTest.php
index 33bc02d82..6104be403 100644
--- a/lib/Cake/Test/Case/Network/CakeRequestTest.php
+++ b/lib/Cake/Test/Case/Network/CakeRequestTest.php
@@ -636,6 +636,10 @@ class CakeRequestTest extends CakeTestCase {
 		$_SERVER['HTTP_USER_AGENT'] = 'Mozilla/5.0 (Windows NT 5.1; rv:2.0b6pre) Gecko/20100902 Firefox/4.0b6pre Fennec/2.0b1pre';
 		$this->assertTrue($request->is('mobile'));
 		$this->assertTrue($request->isMobile());
+
+		$_SERVER['HTTP_USER_AGENT'] = 'Mozilla/5.0 (compatible; MSIE 9.0; Windows Phone OS 7.5; Trident/5.0; IEMobile/9.0; SAMSUNG; OMNIA7)';
+		$this->assertTrue($request->is('mobile'));
+		$this->assertTrue($request->isMobile());
 	}
 
 /**