diff --git a/src/Oauth2/Resource/Server.php b/src/Oauth2/Resource/Server.php
index 64a29d6e..9b45bc41 100644
--- a/src/Oauth2/Resource/Server.php
+++ b/src/Oauth2/Resource/Server.php
@@ -148,7 +148,7 @@ class Server
 
             if (isset($headers['Authorization'])) {
 
-                $rawToken = trim(str_replace('Bearer', '', $headers['Authorization']));
+                $rawToken = base64_decode(str_replace('Bearer ', '', trim($headers['Authorization'])));
 
                 if ( ! empty($rawToken)) {
                     $accessToken = $rawToken;
@@ -250,4 +250,4 @@ class Server
 
         return call_user_func_array(array($this->_db, $method), $params);
     }
-}
\ No newline at end of file
+}