diff --git a/README.markdown b/README.markdown
index dc585c2..ea4975e 100644
--- a/README.markdown
+++ b/README.markdown
@@ -33,6 +33,13 @@ session.create_access_token('the_access_token_returned')
 
 The client initialized, we can start interacting with the Egnyte API.
 
+Note:
+You can add a parameters to authorize_url, 
+Ex. To limit access only for the filesystem, add a :scope option to authorize_url
+```
+session.authorize_url('https://127.0.0.1/oauth2callback', scope: "Egnyte.filesystem")
+```
+
 Folders
 ------
 
diff --git a/lib/egnyte/session.rb b/lib/egnyte/session.rb
index 46bbafb..10f7073 100644
--- a/lib/egnyte/session.rb
+++ b/lib/egnyte/session.rb
@@ -22,8 +22,9 @@ def initialize(opts, strategy=:implicit, backoff=0.5)
       @access_token = OAuth2::AccessToken.new(@client, opts[:access_token]) if opts[:access_token]
     end
 
-    def authorize_url(redirect_uri)
-      @client.implicit.authorize_url(:redirect_uri => redirect_uri)
+    def authorize_url(redirect_uri, params ={})
+      params.merge!(:redirect_uri => redirect_uri)
+      @client.implicit.authorize_url(params)
     end
 
     def create_access_token(token)