diff --git a/activemodel/lib/active_model/validations.rb b/activemodel/lib/active_model/validations.rb
index cd37925292435bac8e5603d67d89f435459b4886..1b5fb55b7916b190372e2a416da1b71d10298fbc 100644
--- a/activemodel/lib/active_model/validations.rb
+++ b/activemodel/lib/active_model/validations.rb
@@ -100,7 +100,7 @@ def validates_each(*attr_names, &block)
       #     validate :must_be_friends
       #
       #     def must_be_friends
-      #       errors.add_to_base("Must be friends to leave a comment") unless commenter.friend_of?(commentee)
+      #       errors.add(:base, "Must be friends to leave a comment") unless commenter.friend_of?(commentee)
       #     end
       #   end
       #
@@ -114,7 +114,7 @@ def validates_each(*attr_names, &block)
       #     end
       #
       #     def must_be_friends
-      #       errors.add_to_base("Must be friends to leave a comment") unless commenter.friend_of?(commentee)
+      #       errors.add(:base, ("Must be friends to leave a comment") unless commenter.friend_of?(commentee)
       #     end
       #   end
       #