diff --git a/index.html b/index.html
index fd380d7..fd77fb4 100644
--- a/index.html
+++ b/index.html
@@ -309,7 +309,7 @@ <h4>Options and parameters</h4>
                     <td>String</td>
                   </tr>
                   <tr>
-                    <td rowspan="5">Payment Request - transaction</td>
+                    <td rowspan="6">Payment Request - transaction</td>
                     <th>Option</th>
                     <th>Description</th>
                     <th>Type</th>
@@ -339,6 +339,12 @@ <h4>Options and parameters</h4>
                     </td>
                     <td>String</td>
                   </tr>
+                  <tr>
+                    <td>jsonWebhook</td>
+                    <td>Optional parameter to receive the webhook in JSON format
+                    </td>
+                    <td>boolean</td>
+                  </tr>
                 </table>
               </div>
             </div>