diff --git a/src/com/zoho/api/authenticator/OAuthToken.php b/src/com/zoho/api/authenticator/OAuthToken.php
index a53f021..7ecadba 100755
--- a/src/com/zoho/api/authenticator/OAuthToken.php
+++ b/src/com/zoho/api/authenticator/OAuthToken.php
@@ -30,23 +30,23 @@ class TokenType
  */
 class OAuthToken implements Token
 {
-    private $clientID = null;
+    protected $clientID = null;
     
-    private $clientSecret = null;
+    protected $clientSecret = null;
     
-    private $redirectURL = null;
+    protected $redirectURL = null;
     
-    private $grantToken = null;
+    protected $grantToken = null;
     
-    private $refreshToken = null;
+    protected $refreshToken = null;
     
-    private $accessToken = null;
+    protected $accessToken = null;
     
-    private $expiresIn = null;
+    protected $expiresIn = null;
     
-    private $userMail = null;
+    protected $userMail = null;
 
-    private $id = null;
+    protected $id = null;
     
     /**
      * Creates an OAuthToken class instance with the specified parameters.
@@ -471,4 +471,4 @@ public function remove()
             throw new SDKException(null, null, null, $ex);
         }
     }
-}
\ No newline at end of file
+}