diff --git a/framework/yii/base/HttpException.php b/framework/yii/base/HttpException.php
index b1478b0..cce0bb0 100644
--- a/framework/yii/base/HttpException.php
+++ b/framework/yii/base/HttpException.php
@@ -7,8 +7,6 @@
 
 namespace yii\base;
 
-use yii\web\Response;
-
 
 /**
  * HttpException represents an exception caused by an improper request of the end-user.
@@ -45,8 +43,8 @@ class HttpException extends UserException
 	 */
 	public function getName()
 	{
-		if (isset(Response::$statusTexts[$this->statusCode])) {
-			return Response::$statusTexts[$this->statusCode];
+		if (isset(\yii\web\Response::$statusTexts[$this->statusCode])) {
+			return \yii\web\Response::$statusTexts[$this->statusCode];
 		} else {
 			return 'Error';
 		}
diff --git a/tests/unit/framework/web/ResponseTest.php b/tests/unit/framework/web/ResponseTest.php
index 2fde63d..5da9b8c 100644
--- a/tests/unit/framework/web/ResponseTest.php
+++ b/tests/unit/framework/web/ResponseTest.php
@@ -32,6 +32,7 @@ class ResponseTest extends \yiiunit\TestCase
 	protected function setUp()
 	{
 		parent::setUp();
+		$this->mockApplication();
 		$this->reset();
 	}