diff --git a/ChangeLog b/ChangeLog
index b104aa50af..798bf408b1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -823,7 +823,7 @@ Wed Jun 16 16:04:40 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 Wed Jun 16 16:01:17 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* gc.c (stack_grow_direction): memorize the direction.
+	* gc.c (stack_grow_direction): memoize the direction.
 
 	* gc.c (Init_stack): should always move to end of VALUE.