diff --git a/bsp_q7s/core/CoreController.cpp b/bsp_q7s/core/CoreController.cpp
index 535d12ed..7acbd9ff 100644
--- a/bsp_q7s/core/CoreController.cpp
+++ b/bsp_q7s/core/CoreController.cpp
@@ -1535,7 +1535,7 @@ void CoreController::rewriteRebootFile(RebootFile file) {
     rebootFile << "on: " << file.enabled << "\nmaxcnt: " << file.maxCount
                << "\nimg00: " << file.img00Cnt << "\nimg01: " << file.img01Cnt
                << "\nimg10: " << file.img10Cnt << "\nimg11: " << file.img11Cnt
-               << "\nbootflag: " << file.bootFlag << "\nlast: " << file.lastChip << " "
-               << file.lastCopy << "\n";
+               << "\nbootflag: " << file.bootFlag << "\nlast: " << static_cast<int>(file.lastChip)
+               << " " << static_cast<int>(file.lastCopy) << "\n";
   }
 }