diff --git a/tests/unit/Command/UserExportTest.php b/tests/unit/Command/UserExportTest.php
index 9baf07a071..7219b5eef9 100644
--- a/tests/unit/Command/UserExportTest.php
+++ b/tests/unit/Command/UserExportTest.php
@@ -98,6 +98,7 @@ public function getComment($id) {
 		$comment = new Comment();
 		$comment->setActor('users', 'admin');
 		$comment->setMessage('fake comment' . $id);
+		$comment->setCreationDateTime(new \DateTime('2026-01-01T00:00:00+00:00'));
 		return $comment;
 	}