diff --git a/sites/all/modules/contrib/xmlsitemap/xmlsitemap.module b/sites/all/modules/contrib/xmlsitemap/xmlsitemap.module
index 09d02ea1b..fe7288b74 100644
--- a/sites/all/modules/contrib/xmlsitemap/xmlsitemap.module
+++ b/sites/all/modules/contrib/xmlsitemap/xmlsitemap.module
@@ -271,10 +271,17 @@ function xmlsitemap_modules_disabled(array $modules) {
  * Implements hook_robotstxt().
  */
 function xmlsitemap_robotstxt() {
-  if ($sitemap = xmlsitemap_sitemap_load_by_context()) {
-    $robotstxt[] = 'Sitemap: ' . url($sitemap->uri['path'], $sitemap->uri['options']);
-    return $robotstxt;
+  $robotstxt = array();
+  $smids = db_select('xmlsitemap_sitemap')
+    ->fields('xmlsitemap_sitemap', array('smid'))
+    ->execute()
+    ->fetchCol();
+  if ($smids) {
+    foreach (xmlsitemap_sitemap_load_multiple($smids) as $sitemap) {
+      $robotstxt[] = 'Sitemap: ' . url($sitemap->uri['path'], $sitemap->uri['options']);
+    }
   }
+  return $robotstxt;
 }
 
 /**