diff --git a/openid.php b/openid.php
index b9c80cd..0331d35 100644
--- a/openid.php
+++ b/openid.php
@@ -154,7 +154,7 @@ function hostExists($url)
         return !!gethostbynamel($server);
     }
 
-    protected function request_curl($url, $method='GET', $params=array(), $update_claimed_id)
+    protected function request_curl($url, $method='GET', $params=array(), $update_claimed_id=false)
     {
         $params = http_build_query($params, '', '&');
         $curl = curl_init($url . ($method == 'GET' && $params ? '?' . $params : ''));
@@ -262,7 +262,7 @@ protected function parse_header_array($array, $update_claimed_id)
         return $headers;
     }
 
-    protected function request_streams($url, $method='GET', $params=array(), $update_claimed_id)
+    protected function request_streams($url, $method='GET', $params=array(), $update_claimed_id=false)
     {
         if(!$this->hostExists($url)) {
             throw new ErrorException("Could not connect to $url.", 404);