diff --git a/guides/source/active_record_validations_callbacks.md b/guides/source/active_record_validations_callbacks.md
index 0f4140b6500ba8dfe326a83329968e91a9c6c375..28f693a8565d2187cb53b5e4f617c1428d63614e 100644
--- a/guides/source/active_record_validations_callbacks.md
+++ b/guides/source/active_record_validations_callbacks.md
@@ -674,7 +674,7 @@ class Invoice < ActiveRecord::Base
     :discount_cannot_be_greater_than_total_value
 
   def expiration_date_cannot_be_in_the_past
-    if !expiration_date.blank? and expiration_date < Date.today
+    if expiration_date.present? && expiration_date < Date.today
       errors.add(:expiration_date, "can't be in the past")
     end
   end