diff --git a/web/profiles/joinup/tests/src/Unit/ExportUserListFormTest.php b/web/profiles/joinup/tests/src/Unit/ExportUserListFormTest.php
index 9722b3a088541fb395ad41078cab77df4734d9c6..81419e1aea0a286ff95aaf8422b51f6fa7d35a4e 100644
--- a/web/profiles/joinup/tests/src/Unit/ExportUserListFormTest.php
+++ b/web/profiles/joinup/tests/src/Unit/ExportUserListFormTest.php
@@ -10,6 +10,7 @@
 use Drupal\Tests\UnitTestCase;
 use Drupal\joinup\Form\ExportUserListForm;
 use Drupal\joinup_user\EntityAuthorshipHelperInterface;
+use Drupal\og\MembershipManagerInterface;
 
 /**
  * Tests certain atomic methods of ExportUserListForm.
@@ -34,6 +35,7 @@ public function setUp(): void {
     $this->formInstance = new ExportUserListForm(
       $this->prophesize(EntityTypeManagerInterface::class)->reveal(),
       $this->prophesize(EntityAuthorshipHelperInterface::class)->reveal(),
+      $this->prophesize(MembershipManagerInterface::class)->reveal(),
       $this->prophesize(FileSystemInterface::class)->reveal(),
       $this->prophesize(CsrfTokenGenerator::class)->reveal()
     );