diff --git a/lib/Cake/Test/Case/Controller/Component/RequestHandlerComponentTest.php b/lib/Cake/Test/Case/Controller/Component/RequestHandlerComponentTest.php
index 17b50cbea..bc0e49cf2 100644
--- a/lib/Cake/Test/Case/Controller/Component/RequestHandlerComponentTest.php
+++ b/lib/Cake/Test/Case/Controller/Component/RequestHandlerComponentTest.php
@@ -399,6 +399,20 @@ class RequestHandlerComponentTest extends CakeTestCase {
 		$this->assertFalse(is_object($this->Controller->data));
 	}
 
+/**
+ * testStartupCallbackJson method
+ *
+ * @return void
+ */
+	public function testStartupCallbackJson() {
+		$_SERVER['REQUEST_METHOD'] = 'PUT';
+		$_SERVER['CONTENT_TYPE'] = 'application/json';
+		$this->Controller->request = $this->getMock('CakeRequest', array('_readInput'));
+		$this->RequestHandler->startup($this->Controller);
+		$this->assertTrue(is_array($this->Controller->data));
+		$this->assertFalse(is_object($this->Controller->data));
+	}
+
 /**
  * testStartupCallback with charset.
  *