diff --git a/CRM/Twingle/Form/Profile.php b/CRM/Twingle/Form/Profile.php
index e5cc6d4..0a7c065 100644
--- a/CRM/Twingle/Form/Profile.php
+++ b/CRM/Twingle/Form/Profile.php
@@ -209,6 +209,13 @@ class CRM_Twingle_Form_Profile extends CRM_Core_Form {
       array('class' => 'crm-select2 huge')
     );
 
+    $this->add(
+      'text', // field type
+      'contribution_source', // field name
+      E::ts('Contribution source'), // field label
+      array()
+    );
+
     $this->addButtons(array(
       array(
         'type' => 'submit',
diff --git a/CRM/Twingle/Profile.php b/CRM/Twingle/Profile.php
index 0a0702d..ce6aa54 100644
--- a/CRM/Twingle/Profile.php
+++ b/CRM/Twingle/Profile.php
@@ -188,6 +188,7 @@ class CRM_Twingle_Profile {
       'postinfo_groups',
       'donation_receipt_groups',
       'campaign',
+      'contribution_source',
     );
   }
 
@@ -244,6 +245,7 @@ class CRM_Twingle_Profile {
       'postinfo_groups' => NULL,
       'donation_receipt_groups' => NULL,
       'campaign' => NULL,
+      'contribution_source' => NULL,
     ));
   }
 
diff --git a/api/v3/TwingleDonation/Submit.php b/api/v3/TwingleDonation/Submit.php
index 4dd6e9a..7be943d 100644
--- a/api/v3/TwingleDonation/Submit.php
+++ b/api/v3/TwingleDonation/Submit.php
@@ -451,6 +451,9 @@ function civicrm_api3_twingle_donation_Submit($params) {
     if (!empty($campaign = $profile->getAttribute('campaign'))) {
       $contribution_data['campaign_id'] = $campaign;
     }
+    if (!empty($contribution_source = $profile->getAttribute('contribution_source'))) {
+      $contribution_data['source'] = $contribution_source;
+    }
 
     if (
       CRM_Twingle_Submission::civiSepaEnabled()
diff --git a/templates/CRM/Twingle/Form/Profile.tpl b/templates/CRM/Twingle/Form/Profile.tpl
index 1841feb..2c9eee2 100644
--- a/templates/CRM/Twingle/Form/Profile.tpl
+++ b/templates/CRM/Twingle/Form/Profile.tpl
@@ -107,6 +107,11 @@
           <td class="content">{$form.campaign.html}</td>
         </tr>
 
+        <tr class="crm-section">
+          <td class="label">{$form.contribution_source.label}</td>
+          <td class="content">{$form.contribution_source.html}</td>
+        </tr>
+
       </table>
 
     </fieldset>