diff --git a/app/code/community/RicardoMartins/PagSeguro/controllers/AjaxController.php b/app/code/community/RicardoMartins/PagSeguro/controllers/AjaxController.php
index 594a1753..043c95f6 100644
--- a/app/code/community/RicardoMartins/PagSeguro/controllers/AjaxController.php
+++ b/app/code/community/RicardoMartins/PagSeguro/controllers/AjaxController.php
@@ -17,7 +17,11 @@ class RicardoMartins_PagSeguro_AjaxController extends Mage_Core_Controller_Front
      */
     public function getGrandTotalAction()
     {
-        $total = Mage::helper('checkout/cart')->getQuote()->getGrandTotal();
+        /** @var Mage_Sales_Model_Quote $quote */
+        $quote = Mage::helper('checkout/cart')->getQuote();
+        $quote->getPayment()->setMethod('rm_pagseguro_cc');
+        $quote->collectTotals();
+        $total = $quote->getGrandTotal();
 
         $this->getResponse()->setHeader('Content-type', 'application/json', true);
         $this->getResponse()->setBody(json_encode(array('total'=>$total)));
diff --git a/app/code/community/RicardoMartins/PagSeguro/etc/config.xml b/app/code/community/RicardoMartins/PagSeguro/etc/config.xml
index 9c577275..c751b0cd 100644
--- a/app/code/community/RicardoMartins/PagSeguro/etc/config.xml
+++ b/app/code/community/RicardoMartins/PagSeguro/etc/config.xml
@@ -2,7 +2,7 @@
 <config>
     <modules>
         <RicardoMartins_PagSeguro>
-            <version>3.7.2</version>
+            <version>3.7.3</version>
         </RicardoMartins_PagSeguro>
     </modules>
     <global>