diff --git a/src/app/code/community/Queueit/Knownuser/Model/Observer.php b/src/app/code/community/Queueit/Knownuser/Model/Observer.php
index e40c44e..8ced89c 100644
--- a/src/app/code/community/Queueit/Knownuser/Model/Observer.php
+++ b/src/app/code/community/Queueit/Knownuser/Model/Observer.php
@@ -3,6 +3,7 @@
 
 class Queueit_Knownuser_Model_Observer
 {
+	const MAGENTO_SDK_VERSION = "1.2.0";
     /**
      * Temporary storage of the cookie value, easier for validation.
      *
@@ -54,15 +55,14 @@ public function handleRequest(Mage_Core_Controller_Request_Http $request, Mage_C
 
             if ($result->doRedirect()) {
                     $response = $action->getResponse();
-
                     if(!$result->isAjaxResult)
                     {
-                        $response->setRedirect($result->redirectUrl);
+                        $response->setRedirect($result->redirectUrl .'&mg1sdkver='.Queueit_Knownuser_Model_Observer::MAGENTO_SDK_VERSION);
                     }
                     else
                     {
                         $response->setHeader('HTTP/1.0', 200, true);
-                        $response->setHeader($result->getAjaxQueueRedirectHeaderKey() , $result->getAjaxRedirectUrl());
+                        $response->setHeader($result->getAjaxQueueRedirectHeaderKey() , $result->getAjaxRedirectUrl(). urlencode('&mg1sdkver='.Queueit_Knownuser_Model_Observer::MAGENTO_SDK_VERSION));
                     }
                  
                     $response->setHeader('Expires', 'Fri, 01 Jan 1990 00:00:00 GMT');
diff --git a/src/app/code/community/Queueit/Knownuser/etc/config.xml b/src/app/code/community/Queueit/Knownuser/etc/config.xml
index 214e336..2bbf253 100644
--- a/src/app/code/community/Queueit/Knownuser/etc/config.xml
+++ b/src/app/code/community/Queueit/Knownuser/etc/config.xml
@@ -2,7 +2,7 @@
 <config>
     <modules>
         <Queueit_Knownuser>
-            <version>1.0.1</version>
+            <version>1.2.0</version>
         </Queueit_Knownuser>
     </modules>
     <global>