diff --git a/lib/API/MP/v1/API.php b/lib/API/MP/v1/API.php
index b42520d58b..af991f0a64 100644
--- a/lib/API/MP/v1/API.php
+++ b/lib/API/MP/v1/API.php
@@ -13,6 +13,7 @@ use MailPoet\Subscribers\NewSubscriberNotificationMailer;
 use MailPoet\Subscribers\RequiredCustomFieldValidator;
 use MailPoet\Subscribers\Source;
 use MailPoet\Tasks\Sending;
+use MailPoet\Util\Helpers;
 use MailPoet\WP\Functions as WPFunctions;
 
 class API {
@@ -262,11 +263,15 @@ class API {
       );
     }
 
+    if (empty($subscriber['subscribed_ip'])) {
+      $subscriber['subscribed_ip'] = Helpers::getIP();
+    }
+
     // separate data into default and custom fields
     list($default_fields, $custom_fields) = Subscriber::extractCustomFieldsFromFromObject($subscriber);
 
-    // filter out all incoming data that we don't want to change, like status, ip address, ...
-    $default_fields = array_intersect_key($default_fields, array_flip(['email', 'first_name', 'last_name']));
+    // filter out all incoming data that we don't want to change, like status ...
+    $default_fields = array_intersect_key($default_fields, array_flip(['email', 'first_name', 'last_name', 'subscribed_ip']));
 
     // if some required default fields are missing, set their values
     $default_fields = Subscriber::setRequiredFieldsDefaultValues($default_fields);
diff --git a/tests/integration/API/MP/APITest.php b/tests/integration/API/MP/APITest.php
index fca0dfd85e..f4479d2a69 100644
--- a/tests/integration/API/MP/APITest.php
+++ b/tests/integration/API/MP/APITest.php
@@ -471,14 +471,26 @@ class APITest extends \MailPoetTest {
     'cf_' . $custom_field->id => 'test',
     ];
 
+    $_SERVER['REMOTE_ADDR'] = '127.0.0.1';
     $result = $this->getApi()->addSubscriber($subscriber);
     expect($result['id'])->greaterThan(0);
     expect($result['email'])->equals($subscriber['email']);
     expect($result['cf_' . $custom_field->id])->equals('test');
     expect($result['source'])->equals('api');
+    expect($result['subscribed_ip'])->equals($_SERVER['REMOTE_ADDR']);
     expect(strlen($result['unsubscribe_token']))->equals(15);
   }
 
+  function testItAllowsToOverrideSubscriberIPAddress() {
+    $subscriber = [
+      'email' => 'test-ip-2@example.com',
+      'subscribed_ip' => '1.2.3.4',
+    ];
+
+    $result = $this->getApi()->addSubscriber($subscriber);
+    expect($result['subscribed_ip'])->equals($subscriber['subscribed_ip']);
+  }
+
   function testItChecksForMandatoryCustomFields() {
     CustomField::createOrUpdate([
       'name' => 'custom field',