diff --git a/wp-admin/includes/upgrade.php b/wp-admin/includes/upgrade.php
index cc01b055ee..a45cde832b 100644
--- a/wp-admin/includes/upgrade.php
+++ b/wp-admin/includes/upgrade.php
@@ -1110,7 +1110,7 @@ function upgrade_300() {
 
 	if ( $wp_current_db_version < 14139 ) {
 		populate_roles_300();
-		if ( is_multisite() && is_main_site() && ! defined( 'MULTISITE' ) && get1_site_option( 'siteurl' ) === false )
+		if ( is_multisite() && is_main_site() && ! defined( 'MULTISITE' ) && get_site_option( 'siteurl' ) === false )
 			add_site_option( 'siteurl', '' );
 	}