diff --git a/lib/main/STM32H7/Drivers/STM32H7xx_HAL_Driver/Inc/stm32h7xx_hal_def.h b/lib/main/STM32H7/Drivers/STM32H7xx_HAL_Driver/Inc/stm32h7xx_hal_def.h
index a55ffb9d01..b678448a33 100755
--- a/lib/main/STM32H7/Drivers/STM32H7xx_HAL_Driver/Inc/stm32h7xx_hal_def.h
+++ b/lib/main/STM32H7/Drivers/STM32H7xx_HAL_Driver/Inc/stm32h7xx_hal_def.h
@@ -45,7 +45,7 @@
 /* Includes ------------------------------------------------------------------*/
 #include "stm32h7xx.h"
 #include "Legacy/stm32_hal_legacy.h"
-#include <stdio.h>
+#include <stddef.h>
 
 /* Exported types ------------------------------------------------------------*/