gistfile1.diff

diff --git a/app/models/auth_source_ldap.rb b/app/models/auth_source_ldap.rb
index 561628e..d31f0da 100644
--- a/app/models/auth_source_ldap.rb
+++ b/app/models/auth_source_ldap.rb
@@ -103,7 +103,7 @@ class AuthSourceLdap < AuthSource
   end
 
   def required_ldap_attributes
-    return [] unless onthefly_register?
+    return {} unless onthefly_register?
     { :firstname => attr_firstname,
       :lastname  => attr_lastname,
       :mail      => attr_mail,