diff --git a/ChangeLog b/ChangeLog
index c4ff511..477d907 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2018-12-07  NIIBE Yutaka  <gniibe@fsij.org>
+
+	* src/gnuk.h (EV_EXEC_ACK_REQUIRED): Have precedence
+	than EV_EXEC_FINISHED.
+
 2018-12-06  NIIBE Yutaka  <gniibe@fsij.org>
 
 	* src/usb-ccid.c (ccid_thread): Priority of handling
diff --git a/src/gnuk.h b/src/gnuk.h
index 383241b..2082c3d 100644
--- a/src/gnuk.h
+++ b/src/gnuk.h
@@ -25,8 +25,8 @@ void ccid_card_change_signal (int how);
 
 /* CCID thread */
 #define EV_RX_DATA_READY      1 /* USB Rx data available  */
-#define EV_EXEC_ACK_REQUIRED  2 /* OpenPGPcard Execution ACK required*/
-#define EV_EXEC_FINISHED      4 /* OpenPGPcard Execution finished */
+#define EV_EXEC_FINISHED      2 /* OpenPGPcard Execution finished */
+#define EV_EXEC_ACK_REQUIRED  4 /* OpenPGPcard Execution ACK required */
 #define EV_TX_FINISHED        8 /* CCID Tx finished  */
 #define EV_CARD_CHANGE       16