diff --git a/plexauth.py b/plexauth.py
index 43ed0a5..af12925 100755
--- a/plexauth.py
+++ b/plexauth.py
@@ -35,6 +35,9 @@ def auth_url(self, forward_url=None):
             'clientID': self._client_identifier,
             'code': self._code,
         }
+        if forward_url:
+            parameters['forwardUrl'] = urllib.parse.urlencode(forward_url)
+
         url = AUTH_URL.format(urllib.parse.urlencode(parameters))
         return url