diff --git a/lib/devise_facebook_connectable/strategy.rb b/lib/devise_facebook_connectable/strategy.rb
index ca2cfb6..e80cfaf 100644
--- a/lib/devise_facebook_connectable/strategy.rb
+++ b/lib/devise_facebook_connectable/strategy.rb
@@ -16,7 +16,7 @@ class FacebookConnectable < ::Warden::Strategies::Base
         # Without a Facebook session authentication cannot proceed.
         #
         def valid?
-          ::Facebooker::Session.current.present?
+          super && ::Facebooker::Session.current.present?
         end
 
         # Authenticate user with Facebook Connect.