diff --git a/ChangeLog b/ChangeLog
index de3583f59e..9f8263598c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Thu Jul 21 17:30:21 2011  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* array.c (rb_ary_delete_at_m): use simple array literal in rdoc.
+	  patched by samuel tonini. [ruby-core:38310] [Bug #5066]
+
 Thu Jul 21 17:14:21 2011  NARUSE, Yui  <naruse@ruby-lang.org>
 
 	* lib/webrick/httprequest.rb (WEBrick::HTTPRequest#each):
diff --git a/array.c b/array.c
index 7360a68e68..84ca90f12f 100644
--- a/array.c
+++ b/array.c
@@ -2481,7 +2481,7 @@ rb_ary_delete_at(VALUE ary, long pos)
  *  or <code>nil</code> if the index is out of range. See also
  *  <code>Array#slice!</code>.
  *
- *     a = %w( ant bat cat dog )
+ *     a = ["ant", "bat", "cat", "dog"]
  *     a.delete_at(2)    #=> "cat"
  *     a                 #=> ["ant", "bat", "dog"]
  *     a.delete_at(99)   #=> nil