diff --git a/src/wp-includes/class-wp-network-query.php b/src/wp-includes/class-wp-network-query.php
index 9390657894..cb42cb478a 100644
--- a/src/wp-includes/class-wp-network-query.php
+++ b/src/wp-includes/class-wp-network-query.php
@@ -108,8 +108,8 @@ class WP_Network_Query {
  	 *                                              Default 0.
  	 *     @type bool         $no_found_rows        Whether to disable the `SQL_CALC_FOUND_ROWS` query. Default true.
  	 *     @type string|array $orderby              Network status or array of statuses. Accepts 'id', 'domain', 'path',
- 	 *                                              'domain_length', 'path_length' and 'network__in'. Also accepts false, an empty array, or 'none' to disable
- 	 *                                              `ORDER BY` clause. Default 'id'.
+ 	 *                                              'domain_length', 'path_length' and 'network__in'. Also accepts false,
+ 	 *                                              an empty array, or 'none' to disable `ORDER BY` clause. Default 'id'.
  	 *     @type string       $order                How to order retrieved networks. Accepts 'ASC', 'DESC'. Default 'ASC'.
  	 *     @type string       $domain               Limit results to those affiliated with a given network ID.
  	 *                                              Default current network ID.
@@ -132,7 +132,7 @@ class WP_Network_Query {
 			'number'               => '',
 			'offset'               => '',
 			'no_found_rows'        => true,
-			'orderby'              => '',
+			'orderby'              => 'id',
 			'order'                => 'ASC',
 			'domain'               => '',
 			'domain__in'           => '',
diff --git a/tests/phpunit/tests/multisite/networkQuery.php b/tests/phpunit/tests/multisite/networkQuery.php
index 3317b43137..bec849ba28 100644
--- a/tests/phpunit/tests/multisite/networkQuery.php
+++ b/tests/phpunit/tests/multisite/networkQuery.php
@@ -59,6 +59,27 @@ class Tests_Multisite_Network_Query extends WP_UnitTestCase {
 		$this->assertEquals( 3, count( $found ) );
 	}
 
+	public function test_wp_network_query_by_network__in_with_order() {
+		$expected = array( self::$network_ids['wordpress.org/'], self::$network_ids['make.wordpress.org/'] );
+
+		$q = new WP_Network_Query();
+		$found = $q->query( array(
+			'fields'      => 'ids',
+			'network__in' => $expected,
+			'order'       => 'ASC',
+		) );
+
+		$this->assertEquals( $expected, $found );
+
+		$found = $q->query( array(
+			'fields'      => 'ids',
+			'network__in' => $expected,
+			'order'       => 'DESC',
+		) );
+
+		$this->assertEquals( array_reverse( $expected ), $found );
+	}
+
 	public function test_wp_network_query_by_network__in_with_single_id() {
 		$expected = array( self::$network_ids['wordpress.org/'] );