diff --git a/source/Core/BSP/BSP.h b/source/Core/BSP/BSP.h
index ae949113..3d07a519 100644
--- a/source/Core/BSP/BSP.h
+++ b/source/Core/BSP/BSP.h
@@ -92,7 +92,7 @@ enum StatusLED {
   LED_COOLING_STILL_HOT, // The unit is off and cooling but still hot
   LED_UNKNOWN,           //
 };
-void setStatusLED(enum StatusLED state, bool buzzer);
+void setStatusLED(const enum StatusLED state, bool buzzer);
 
 // preStartChecks are run until they return 0
 // By the PID, after each ADC sample comes in