gistfile1.diff

diff --git a/activerecord/lib/active_record/validations.rb b/activerecord/lib/active_record/validations.rb
index 1dc7c96..cf6d574 100644
--- a/activerecord/lib/active_record/validations.rb
+++ b/activerecord/lib/active_record/validations.rb
@@ -105,6 +105,7 @@ module ActiveRecord
       #             blank: This title is screwed!
       def generate_full_message(message, options = {})
         keys = [
+          options.delete!(:default),
           :"full_messages.#{@message}",
           :'full_messages.format',
           '{{attribute}} {{message}}'