diff --git a/src/main/platform.h b/src/main/platform.h
index 4055749f98..2905811516 100644
--- a/src/main/platform.h
+++ b/src/main/platform.h
@@ -17,6 +17,10 @@
 
 #pragma once
 
+#if !defined(UNIT_TEST) && !defined(SITL)
+#pragma GCC poison sprintf snprintf
+#endif
+
 #if defined(STM32F745xx) || defined(STM32F746xx) || defined(STM32F722xx)
 #include "stm32f7xx.h"
 #include "stm32f7xx_hal.h"