diff --git a/src/wp-includes/capabilities.php b/src/wp-includes/capabilities.php
index 6a03b8a551..3b296e59e1 100644
--- a/src/wp-includes/capabilities.php
+++ b/src/wp-includes/capabilities.php
@@ -1376,7 +1376,7 @@ function map_meta_cap( $cap, $user_id ) {
 	case 'create_users':
 		if ( !is_multisite() )
 			$caps[] = $cap;
-		elseif ( is_super_admin() || get_site_option( 'add_new_users' ) )
+		elseif ( is_super_admin( $user_id ) || get_site_option( 'add_new_users' ) )
 			$caps[] = $cap;
 		else
 			$caps[] = 'do_not_allow';