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-rw-r--r--guides/source/active_record_validations.md10
1 files changed, 7 insertions, 3 deletions
diff --git a/guides/source/active_record_validations.md b/guides/source/active_record_validations.md
index 15f65a6501..dadac7fb54 100644
--- a/guides/source/active_record_validations.md
+++ b/guides/source/active_record_validations.md
@@ -273,9 +273,13 @@ available helpers.
This method validates that a checkbox on the user interface was checked when a
form was submitted. This is typically used when the user needs to agree to your
application's terms of service, confirm that some text is read, or any similar
-concept. This validation is very specific to web applications and this
-'acceptance' does not need to be recorded anywhere in your database (if you
-don't have a field for it, the helper will just create a virtual attribute).
+concept.
+
+This validation is very specific to web applications and this
+'acceptance' does not need to be recorded anywhere in your database. If you
+don't have a field for it, the helper will just create a virtual attribute. If
+the field does exist in your database, the `accept` option must be set to
+`true` or else the validation will not run.
```ruby
class Person < ActiveRecord::Base