diff --git a/inc/actions.php b/inc/actions.php
index 4a2e200..a203c08 100644
--- a/inc/actions.php
+++ b/inc/actions.php
@@ -639,6 +639,11 @@ function act_sitemap($act) {
     }

     if (is_readable($sitemap)) {
+        // disable gzip compression if there is any
+        if (in_array('ob_gzhandler', ob_list_handlers())) {
+            ob_end_clean();
+            header('Content-Encoding: identity');
+        }
         // Send headers
         header('Content-Type: '.$mime);
         header('Content-Disposition: attachment; filename='.basename($sitemap));