diff --git a/domain_xmlsitemap.module b/domain_xmlsitemap.module
index 429d569..fc1770c 100644
--- a/domain_xmlsitemap.module
+++ b/domain_xmlsitemap.module
@@ -26,7 +26,7 @@ function domain_xmlsitemap_xmlsitemap_context() {
 function domain_xmlsitemap_xmlsitemap_context_url_options(array $context) {
   $options = array();
   if (isset($context['domain']) && $domain = domain_load($context['domain'])) {
-    $options['base_url'] = rtrim($domain['path'], '/');
+    $options['base_url'] = variable_get('xmlsitemap_base_url', rtrim($domain['path'], '/'));
   }
   return $options;
 }