diff --git a/CRM/Twingle/Form/Profile.php b/CRM/Twingle/Form/Profile.php
index 2015128..e5cc6d4 100644
--- a/CRM/Twingle/Form/Profile.php
+++ b/CRM/Twingle/Form/Profile.php
@@ -200,6 +200,15 @@ class CRM_Twingle_Form_Profile extends CRM_Core_Form {
       array('class' => 'crm-select2 huge', 'multiple' => 'multiple')
     );
 
+    $this->add(
+      'select', // field type
+      'campaign', // field name
+      E::ts('Assign donation to campaign'), // field label
+      $this->getCampaigns(), // list of options
+      FALSE, // is not required
+      array('class' => 'crm-select2 huge')
+    );
+
     $this->addButtons(array(
       array(
         'type' => 'submit',
@@ -470,4 +479,22 @@ class CRM_Twingle_Form_Profile extends CRM_Core_Form {
     return $this->getGroups();
   }
 
+  /**
+   * Retrieves campaigns as options for select elements.
+   */
+  public function getCampaigns() {
+    $campaigns = array();
+    $query = civicrm_api3('Campaign', 'get', array(
+      'option.limit' => 0,
+      'return' => array(
+        'id',
+        'title',
+      )
+    ));
+    foreach ($query['values'] as $campaign) {
+      $campaigns[$campaign['id']] = $campaign['title'];
+    }
+    return $campaigns;
+  }
+
 }
diff --git a/CRM/Twingle/Profile.php b/CRM/Twingle/Profile.php
index aa6bd0f..0a0702d 100644
--- a/CRM/Twingle/Profile.php
+++ b/CRM/Twingle/Profile.php
@@ -186,7 +186,8 @@ class CRM_Twingle_Profile {
       'gender_other',
       'newsletter_groups',
       'postinfo_groups',
-      'donation_receipt_groups'
+      'donation_receipt_groups',
+      'campaign',
     );
   }
 
@@ -242,6 +243,7 @@ class CRM_Twingle_Profile {
       'newsletter_groups' => NULL,
       'postinfo_groups' => NULL,
       'donation_receipt_groups' => NULL,
+      'campaign' => NULL,
     ));
   }
 
diff --git a/api/v3/TwingleDonation/Submit.php b/api/v3/TwingleDonation/Submit.php
index 67e146f..4dd6e9a 100644
--- a/api/v3/TwingleDonation/Submit.php
+++ b/api/v3/TwingleDonation/Submit.php
@@ -448,6 +448,9 @@ function civicrm_api3_twingle_donation_Submit($params) {
     if (!empty($params['purpose'])) {
       $contribution_data['note'] = $params['purpose'];
     }
+    if (!empty($campaign = $profile->getAttribute('campaign'))) {
+      $contribution_data['campaign_id'] = $campaign;
+    }
 
     if (
       CRM_Twingle_Submission::civiSepaEnabled()
diff --git a/templates/CRM/Twingle/Form/Profile.tpl b/templates/CRM/Twingle/Form/Profile.tpl
index 62b2d8a..1841feb 100644
--- a/templates/CRM/Twingle/Form/Profile.tpl
+++ b/templates/CRM/Twingle/Form/Profile.tpl
@@ -102,6 +102,11 @@
           <td class="content">{$form.donation_receipt_groups.html}</td>
         </tr>
 
+        <tr class="crm-section">
+          <td class="label">{$form.campaign.label}</td>
+          <td class="content">{$form.campaign.html}</td>
+        </tr>
+
       </table>
 
     </fieldset>