diff --git a/tests/phpunit/tests/user.php b/tests/phpunit/tests/user.php
index 720fb137b7..faf6798ba7 100644
--- a/tests/phpunit/tests/user.php
+++ b/tests/phpunit/tests/user.php
@@ -968,8 +968,6 @@ class Tests_User extends WP_UnitTestCase {
 	 * @ticket 47902
 	 */
 	public function test_wp_insert_user_with_empty_data() {
-		global $wpdb;
-
 		add_filter( 'wp_pre_insert_user_data', '__return_empty_array' );
 
 		$u = self::factory()->user->create();