diff --git a/actionview/lib/action_view/helpers/form_helper.rb b/actionview/lib/action_view/helpers/form_helper.rb
index 610f5c0b4acc4f7e35e42bd5b1ccbcbca8427a48..2a367b85affcf3feb940de83b4700b8ec75a7f42 100644
--- a/actionview/lib/action_view/helpers/form_helper.rb
+++ b/actionview/lib/action_view/helpers/form_helper.rb
@@ -1038,7 +1038,7 @@ def telephone_field(object_name, method, options = {})
       #   date_field("user", "born_on")
       #   # => <input id="user_born_on" name="user[born_on]" type="date" />
       #
-      # The default value is generated by trying to call "to_date"
+      # The default value is generated by trying to call +strftime+ with "%Y-%m-%d"
       # on the object's value, which makes it behave as expected for instances
       # of DateTime and ActiveSupport::TimeWithZone. You can still override that
       # by passing the "value" option explicitly, e.g.