diff --git a/ChangeLog b/ChangeLog
index b70899986a..cb74880586 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -3,7 +3,7 @@ Sun May 30 01:25:48 2010  Masaya Tarui  <tarui@ruby-lnag.org>
 	* thread.c (RB_GC_SAVE_MACHINE_CONTEXT): start GC 
 	  by switching the thread if gc_stress == true 
 
-	* gc.c (ruby_gc_stress_start): dotto.
+	* gc.c (ruby_gc_stress_start): ditto.
 
 Sun May 30 00:02:39 2010  Yusuke Endoh  <mame@tsg.ne.jp>