diff --git a/ChangeLog b/ChangeLog
index 51b8329..43fff82 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2019-12-27  NIIBE Yutaka  <gniibe@fsij.org>
+
+	* chopstx.c (chopstx_poll): Call CHECK for condition
+	valiable after woken up.
+
 2019-12-20  NIIBE Yutaka  <gniibe@fsij.org>
 
 	* mcu/usb-st-common.c (usb_lld_ctrl_recv): Fix receiving