diff --git a/flight/PiOS/STM32F4xx/pios_bl_helper.c b/flight/PiOS/STM32F4xx/pios_bl_helper.c
index 5473e8447..9f08c12bb 100644
--- a/flight/PiOS/STM32F4xx/pios_bl_helper.c
+++ b/flight/PiOS/STM32F4xx/pios_bl_helper.c
@@ -44,6 +44,7 @@ uint8_t *PIOS_BL_HELPER_FLASH_If_Read(uint32_t SectorAddress)
 uint8_t PIOS_BL_HELPER_FLASH_Ini()
 {
 	FLASH_Unlock();
+	FLASH_ClearFlag(FLASH_FLAG_EOP | FLASH_FLAG_OPERR | FLASH_FLAG_WRPERR | FLASH_FLAG_PGAERR | FLASH_FLAG_PGPERR | FLASH_FLAG_PGSERR);
 	return 1;
 }