diff --git a/appsrc/service/hardware/device_io_ctrl_service.cpp b/appsrc/service/hardware/device_io_ctrl_service.cpp
index a06026a..fb39f7f 100644
--- a/appsrc/service/hardware/device_io_ctrl_service.cpp
+++ b/appsrc/service/hardware/device_io_ctrl_service.cpp
@@ -150,7 +150,7 @@ int DeviceIoControlService::forceStopDeviceWithoutExc() {
 }
 
 int DeviceIoControlService::processHeartReportMsg(uint8_t from, report_heatpacket_data_t *report) {
-  logger->info("  REPORT [Heat     ][FROM:{}] HeatIndex:{:x} ToardType:{} flag:{:x}", from, report->heartIndex, BoardTypeId2Str(report->boardType), report->flag);
+  logger->info("  REPORT [Heat     ][FROM:{}] HeatIndex:{:x} ToardType:{} flag:{}", from, report->heartIndex, BoardTypeId2Str(report->boardType), report->flag);
 
 #define CHECK_BOARD_IS_REBOOT(boardid, ecode)                                     \
   {                                                                           \