diff --git a/ChangeLog b/ChangeLog
index 5c9a294607..a9d3478ad1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,6 +1,6 @@
 Mon Sep  1 18:31:10 2008  NAKAMURA Usaku  <usa@ruby-lang.org>
 
-	* win32/win32.c (gettimeofday): shouldn't use mktime(2) because it's
+	* win32/win32.c (gettimeofday): shouldn't use mktime(3) because it's
 	  buggy about handling summer time.
 	  reported by Yoshikawa <yoshixool AT gmail.com> at [ruby-dev:36071]