diff --git a/ChangeLog b/ChangeLog
index 11a55162f7..cb0ff89a5b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Tue Aug 30 15:27:27 2016  Kouhei Yanagita  <yanagi@shakenbu.org>
+
+	* ext/json/lib/json/add/ostruct.rb (OpenStruct.json_create):
+	  Correct documentation, fix the name of values.  [Fix GH-1421]
+
 Tue Aug 30 14:53:34 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
 	* io.c (nogvl_fsync, nogvl_fdatasync): on Windows, just ignore if the
diff --git a/ext/json/lib/json/add/ostruct.rb b/ext/json/lib/json/add/ostruct.rb
index 7c13910052..e064c85ff4 100644
--- a/ext/json/lib/json/add/ostruct.rb
+++ b/ext/json/lib/json/add/ostruct.rb
@@ -7,7 +7,7 @@ require 'ostruct'
 class OpenStruct
 
   # Deserializes JSON string by constructing new Struct object with values
-  # <tt>v</tt> serialized by <tt>to_json</tt>.
+  # <tt>t</tt> serialized by <tt>to_json</tt>.
   def self.json_create(object)
     new(object['t'] || object[:t])
   end