diff --git a/include/functions_trackbacks.inc.php b/include/functions_trackbacks.inc.php
index 095e0b01..d5d271ad 100644
--- a/include/functions_trackbacks.inc.php
+++ b/include/functions_trackbacks.inc.php
@@ -120,14 +120,12 @@ function _serendipity_send($loc, $data, $contenttype = null) {
     }
 
     if ($target['scheme'] == 'https' && empty($target['port'])) {
-        $target['port'] = 443;
-    }
-        
-    if (!is_numeric($target['port'])) {
+       $uri = $target['scheme'] . '://' . $target['host'] . $target['path'] . $target['query'];
+    } elseif (!is_numeric($target['port'])) {
        $target['port'] = 80;
+       $uri = $target['scheme'] . '://' . $target['host'] . ':' . $target['port'] . $target['path'] . $target['query'];
     }
 
-    $uri = $target['scheme'] . '://' . $target['host'] . ':' . $target['port'] . $target['path'] . $target['query'];
     require_once S9Y_PEAR_PATH . 'HTTP/Request.php';
     $options = array('allowRedirects' => true, 'maxRedirects' => 5, 'method' => 'POST');
     serendipity_plugin_api::hook_event('backend_http_request', $options, 'trackback_send');