diff --git a/src/PAMI/Message/Action/HangupAction.php b/src/PAMI/Message/Action/HangupAction.php
index a0ff174d2..a3f7a0236 100644
--- a/src/PAMI/Message/Action/HangupAction.php
+++ b/src/PAMI/Message/Action/HangupAction.php
@@ -47,12 +47,17 @@ class HangupAction extends ActionMessage
      * Constructor.
      *
      * @param string $channel Channel to hangup.
+     * @param int    $cause   Hangup cause.
      *
      * @return void
      */
-    public function __construct($channel)
+    public function __construct($channel, $cause = null)
     {
         parent::__construct('Hangup');
         $this->setKey('Channel', $channel);
+
+        if (null !== $cause) {
+            $this->setKey('Cause', $cause);
+        }
     }
 }
diff --git a/test/actions/Test_Actions.php b/test/actions/Test_Actions.php
index c3f20e1e1..9cad4226a 100644
--- a/test/actions/Test_Actions.php
+++ b/test/actions/Test_Actions.php
@@ -688,6 +688,21 @@ public function can_hangup()
 	    $action = new \PAMI\Message\Action\HangupAction('channel');
         $client = $this->_start($write, $action);
     }
+    /**
+     * @test
+     */
+    public function can_hangup_with_cause()
+    {
+        $write = array(implode("\r\n", array(
+            'action: Hangup',
+            'actionid: 1432.123',
+            'channel: channel',
+            'cause: 5',
+            ''
+        )));
+        $action = new \PAMI\Message\Action\HangupAction('channel', 5);
+        $client = $this->_start($write, $action);
+    }
     /**
      * @test
      */