diff --git a/ChangeLog b/ChangeLog
index b494262907..75e34f5689 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -31,6 +31,7 @@ Sun Dec 28 17:21:36 2008  NARUSE, Yui  <naruse@ruby-lang.org>
 Sun Dec 28 17:10:13 2008  TAKANO Mitsuhiro (takano32)  <tak@no32.tk>
 
 	* ext/dl/test/test_dl2.rb: modify strncpy, strcpy, qsort, types.
+	  Patch by Takehiro Kubo.
 	  Bug #633 [ruby-core:19289]
 	* ext/dl/test/test_base.rb: /lib/libc.so is x86_64 binary in x86_64 architecture.