diff --git a/tests/phpunit/tests/user.php b/tests/phpunit/tests/user.php
index 65869eea4d..481fe6922e 100644
--- a/tests/phpunit/tests/user.php
+++ b/tests/phpunit/tests/user.php
@@ -187,6 +187,9 @@ class Tests_User extends WP_UnitTestCase {
 		$this->assertEquals( 'foo', $user->data->$key );  // This will fail with WP < 3.3
 
 		foreach ( (array) $user as $key => $value ) {
+			if ( $value instanceof wpdb ) {
+				continue;
+			}
 			$this->assertEquals( $value, $user->$key );
 		}
 	}