diff --git a/ChangeLog b/ChangeLog
index cc97d71ee0..9ef033d778 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,6 +1,6 @@
 Wed Jan 20 20:58:25 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* common.mk, Makefile.in: update-config.files is only for Unix
+	* common.mk, Makefile.in: update-config_files is only for Unix
 	  platforms.
 
 Wed Jan 20 17:13:39 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>