diff --git a/CHANGELOG.md b/CHANGELOG.md
index b3e0c8d..dbe93ab 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,13 +3,24 @@ This change log was started in August 2014. All notable changes to this project
 henceforth should be documented here.
 
 ## Master (Unreleased)
+### Added
+
 ### Fixed
 
-*   Add support for passing stringy booleans for ransackable scopes. ([pull request](https://github.com/activerecord-hackery/ransack/pull/460)).
+*   Add support and tests for passing stringy booleans for ransackable scopes
+    ([pull request](https://github.com/activerecord-hackery/ransack/pull/460)).
 
     *Josh Kovach*
 
+### Changed
+
 ## Version 1.5.1 - 2014-10-30
+### Fixed
+
+*   Fix a regression caused by incorrect string constants in `context.rb`.
+
+    *Kazuhiro Nishiyama*
+
 ### Added
 
 *   Add base specs for search on fields with `_start` and `_end`.
@@ -17,20 +28,14 @@ henceforth should be documented here.
     *Jon Atack*
 
 *   Add a failing spec for detecting attribute fields containing `_and_` that
-    needs to be fixed. Method names containing `_and_` and `_or_` are still not
-    parsed/detected correctly.
+    needs to be fixed. Attribute names containing `_and_` and `_or_` are still
+    not parsed/detected correctly.
 
     *Jon Atack*
 
-### Fixed
-
-*   Fix a regression caused by incorrect string constants in context.rb.
-
-    *Kazuhiro NISHIYAMA*
-
 ### Changed
 
-*   Remove duplicate code in spec/support/schema.rb.
+*   Remove duplicate code in `spec/support/schema.rb`.
 
     *Jon Atack*
 
@@ -101,7 +106,6 @@ henceforth should be documented here.
 
     *Jon Atack*
 
-
 ## Version 1.4.1 - 2014-09-23
 ### Fixed
 
@@ -109,7 +113,6 @@ henceforth should be documented here.
 
     *Jon Atack*
 
-
 ## Version 1.4.0 - 2014-09-23
 ### Added
 
diff --git a/README.md b/README.md
index 4d47b80..5d5730e 100644
--- a/README.md
+++ b/README.md
@@ -461,7 +461,11 @@ Employee.search({ active: true, hired_since: '2013-01-01' })
 Employee.search({ salary_gt: 100_000 }, { auth_object: current_user })
 ```
 
-If the `true` value is being passed via url params or by some other mechanism that will convert it to a string (i.e. `"active" => "true"`), the true value will *not* be passed to the scope. If you want to pass a `'true'` string to the scope, you should wrap it in an array (i.e. `"active" => ['true']`).
+If the `true` value is being passed via url params or by some other mechanism
+that will convert it to a string (i.e. `active: 'true'` instead of
+`active: true`), the true value will *not* be passed to the scope. If you want
+to pass a `'true'` string to the scope, you should wrap it in an array (i.e.
+`active: ['true']`).
 
 Scopes are a recent addition to Ransack and currently have a few caveats:
 First, a scope involving child associations needs to be defined in the parent
@@ -471,7 +475,7 @@ wrapped in an array to function (see
 [this issue](https://github.com/activerecord-hackery/ransack/issues/404)),
 which is not compatible with Ransack form helpers. For this use case, it may be
 better for now to use [ransackers]
-(https://github.com/activerecord-hackery/ransack/wiki/Using-Ransackers) instead
+(https://github.com/activerecord-hackery/ransack/wiki/Using-Ransackers) instead,
 where feasible. Pull requests with solutions and tests are welcome!
 
 ### Grouping queries by OR instead of AND
diff --git a/lib/ransack/helpers/form_builder.rb b/lib/ransack/helpers/form_builder.rb
index def9f00..5f86128 100644
--- a/lib/ransack/helpers/form_builder.rb
+++ b/lib/ransack/helpers/form_builder.rb
@@ -1,5 +1,19 @@
 require 'action_view'
 
+# This patch is needed since this Rails commit:
+# https://github.com/rails/rails/commit/c1a118a
+#
+# TODO: Find a better a better to solve this.
+#
+module ActionView::Helpers::Tags
+  class Base
+    private
+    def value(object)
+      object.send @method_name if object # use send instead of public_send
+    end
+  end
+end
+
 RANSACK_FORM_BUILDER = 'RANSACK_FORM_BUILDER'.freeze
 
 require 'simple_form' if
@@ -126,9 +140,8 @@ module Ransack
           end
         end
         collection = keys.map { |k| [k, Translate.predicate(k)] }
-        object.predicate ||= Predicate.named(default) if can_use_default?(
-          default, :predicate, keys
-          )
+        object.predicate ||= Predicate.named(default) if
+          can_use_default?(default, :predicate, keys)
         template_collection_select(:p, collection, options, html_options)
       end