diff --git a/ChangeLog b/ChangeLog
index a4ea6eb45f..c0e7c13ff8 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -3,7 +3,7 @@ Fri Jan  1 00:47:57 2010  Akinori MUSHA  <knu@iDaemons.org>
 	* ext/digest/digest.c (rb_digest_instance_method_unimpl): Suppress
 	  compiler warnings.
 
-Thu Jan  1 00:00:00 2010  Tanaka Akira  <akr@fsij.org>
+Fri Jan  1 00:00:00 2010  Tanaka Akira  <akr@fsij.org>
 
 	* tool/mkconfig.rb: generate RbConfig.ruby in rbconfig.rb.