--- OAuth.php	2009-01-14 10:50:37.000000000 +0000
+++ OAuth_new.php	2009-01-14 10:50:53.000000000 +0000
@@ -365,7 +365,7 @@ class OAuthRequest {/*{{{*/
    * builds the Authorization: header
    */
   public function to_header($realm="") {/*{{{*/
-    $out ='"Authorization: OAuth realm="' . $realm . '",';
+    $out ='Authorization: OAuth realm="' . $realm . '",';
     $total = array();
     foreach ($this->parameters as $k => $v) {
       if (substr($k, 0, 5) != "oauth") continue;
