diff --git a/tumblr/README.md b/tumblr/README.md
index 57ca145a..70b0157b 100644
--- a/tumblr/README.md
+++ b/tumblr/README.md
@@ -1,8 +1,8 @@
 Installation
 ------------
 
-[Register](http://www.tumblr.com/oauth/apps) an application and use (your server name)/addon/tumblr/callback.php as 
-callback URL
+[Register](http://www.tumblr.com/oauth/apps) an application and use (your server name)/tumblr/callback as 
+callback URL and (your server name)/tumblr/redirect as OAuth2 redirect URL.
 
 After the registration please enter the values for "Consumer Key" and "Consumer Secret" in the [administration](admin/addons/tumblr).