diff --git a/ChangeLog b/ChangeLog
index af1ff7a..70be2f7 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,6 @@
 2015-09-04  Niibe Yutaka  <gniibe@fsij.org>
 
+	* example-cdc/sys.h (BOARD_ID_NITROKEY_START): New.
 	* board/board-nitrokey-start.h (BOARD_ID): Fix the value.
 	* clk_gpio_init.c (AFIO_MAPR_SWJ_CFG_JTAGDISABLE): New.
 
diff --git a/example-cdc/sys.h b/example-cdc/sys.h
index 370aa1c..aa7825d 100644
--- a/example-cdc/sys.h
+++ b/example-cdc/sys.h
@@ -9,6 +9,7 @@
 #define BOARD_ID_STM8S_DISCOVERY   0x2f0976bb
 #define BOARD_ID_ST_DONGLE         0x2cd4e471
 #define BOARD_ID_ST_NUCLEO_F103    0x9b87c16d
+#define BOARD_ID_NITROKEY_START    0xad1e7ebd
 
 extern const uint8_t sys_version[8];
 extern const uint32_t sys_board_id;