diff --git a/README.md b/README.md
index 47d6cb6..2e3f346 100644
--- a/README.md
+++ b/README.md
@@ -90,6 +90,7 @@ The action accepts the following parameters:
 | <nobr>`user_street`</nobr>             | String  | The street address of the contact                                                   |                                                                                                                                                                                                                                                                                                                                                                                                                               |                                                                 |
 | <nobr>`user_postal_code`</nobr>        | String  | The postal code of the contact                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                               |                                                                 |
 | <nobr>`user_city`</nobr>               | String  | The city of the contact                                                             |                                                                                                                                                                                                                                                                                                                                                                                                                               |                                                                 |
+| <nobr>`user_country`</nobr>            | String  | The country of the contact                                                          | [ISO 3166-1 Alpha-2 country codes](https://en.wikipedia.org/wiki/ISO_3166-1_alpha-2#Officially_assigned_code_elements)                                                                                                                                                                                                                                                                                                        |                                                                 |
 | <nobr>`user_telephone`</nobr>          | String  | The telephone number of the contact                                                 |                                                                                                                                                                                                                                                                                                                                                                                                                               |                                                                 |
 | <nobr>`user_company`</nobr>            | String  | The company of the contact                                                          |                                                                                                                                                                                                                                                                                                                                                                                                                               |                                                                 |
 | <nobr>`user_extrafield`</nobr>         | String  | Additional information of the contact                                               |                                                                                                                                                                                                                                                                                                                                                                                                                               |                                                                 |
diff --git a/api/v3/TwingleDonation/Submit.php b/api/v3/TwingleDonation/Submit.php
index 2a369b9..cc1d075 100644
--- a/api/v3/TwingleDonation/Submit.php
+++ b/api/v3/TwingleDonation/Submit.php
@@ -203,6 +203,13 @@ function _civicrm_api3_twingle_donation_Submit_spec(&$params) {
     'api.required' => 0,
     'description'  => E::ts('The city of the contact.'),
   );
+  $params['user_country'] = array(
+    'name'         => 'user_country',
+    'title'        => E::ts('Country'),
+    'type'         => CRM_Utils_Type::T_STRING,
+    'api.required' => 0,
+    'description'  => E::ts('The country of the contact.'),
+  );
   $params['user_telephone'] = array(
     'name'         => 'user_telephone',
     'title'        => E::ts('Telephone'),
@@ -287,6 +294,7 @@ function civicrm_api3_twingle_donation_Submit($params) {
                  'user_street' => 'street_address',
                  'user_postal_code' => 'postal_code',
                  'user_city' => 'city',
+                 'user_country' => 'country',
                ) as $address_param => $address_component) {
         if (!empty($params[$address_param])) {
           $params[$address_component] = $params[$address_param];