diff --git a/lib/Models/Subscriber.php b/lib/Models/Subscriber.php
index 4a5973f5f8..3031d2672e 100644
--- a/lib/Models/Subscriber.php
+++ b/lib/Models/Subscriber.php
@@ -838,6 +838,7 @@ class Subscriber extends Model {
       'UPDATE `' . self::$_table . '` ' .
       'SET ' . implode(', ', $sql('statement')) . ' '.
       (($updated_at) ? ', updated_at = "' . $updated_at . '" ' : '') .
+      ', unconfirmed_data = NULL ' .
         'WHERE email IN ' .
         '(' . rtrim(str_repeat('?,', count($subscribers)), ',') . ')',
       array_merge(
diff --git a/tests/unit/Models/SubscriberTest.php b/tests/unit/Models/SubscriberTest.php
index 1f71bd1e58..c1dcff2422 100644
--- a/tests/unit/Models/SubscriberTest.php
+++ b/tests/unit/Models/SubscriberTest.php
@@ -463,9 +463,19 @@ class SubscriberTest extends MailPoetTest {
     expect($subscriber->unconfirmed_data)->equals(json_encode($data2));
 
     // Unconfirmed data should be wiped after any direct update
-    // during confirmation, manual admin editing, import etc.
+    // during confirmation, manual admin editing
     $subscriber = Subscriber::createOrUpdate($data2);
-
+    expect($subscriber->unconfirmed_data)->isEmpty();
+    // during import
+    $subscriber->unconfirmed_data = json_encode($data2);
+    $subscriber->save();
+    expect($subscriber->isDirty('unconfirmed_data'))->false();
+    expect($subscriber->unconfirmed_data)->notEmpty();
+    Subscriber::updateMultiple(
+      array_keys($data2),
+      array(array_values($data2))
+    );
+    $subscriber = Subscriber::where('email', $data2['email'])->findOne();
     expect($subscriber->unconfirmed_data)->isEmpty();
 
     Setting::setValue('signup_confirmation.enabled', $original_setting_value);