diff --git a/lib/single_sign_on.rb b/lib/single_sign_on.rb
index ae89265f9..4e2e83312 100644
--- a/lib/single_sign_on.rb
+++ b/lib/single_sign_on.rb
@@ -1,7 +1,6 @@
 class SingleSignOn
   ACCESSORS = [:nonce, :name, :username, :email,
-               :about_me, :external_email, :external_username,
-               :external_name, :external_id]
+               :about_me, :external_id]
   FIXNUMS = []
   NONCE_EXPIRY_TIME = 10.minutes