diff --git a/sram-overlay.c b/sram-overlay.c
index f56b3de..3be849e 100644
--- a/sram-overlay.c
+++ b/sram-overlay.c
@@ -25,14 +25,12 @@ uint32_t overlay_FLASH_MainClock;
 uint32_t overlay_FLASH_ClockMultiplier;
 uint32_t overlay_0x20000478; // Nothing is using this???
 
-bool overlay_FLASH_RebootToBootloader(void)
+void overlay_FLASH_RebootToBootloader(void)
 {
 	overlay_FLASH_MaskUnlock();
 	overlay_FLASH_SetMaskSel(FLASH_MASK_SELECTION_NONE);
 	overlay_FLASH_MaskLock();
 	overlay_SystemReset();
-
-	return (FLASH_ST & FLASH_ST_BUSY_MASK) != FLASH_ST_BUSY_BITS_READY;
 }
 
 bool overlay_FLASH_IsBusy(void)
diff --git a/sram-overlay.h b/sram-overlay.h
index ba53afb..8b6c7cc 100644
--- a/sram-overlay.h
+++ b/sram-overlay.h
@@ -25,7 +25,7 @@ extern uint32_t overlay_FLASH_MainClock __attribute__((section(".srambss")));
 extern uint32_t overlay_FLASH_ClockMultiplier __attribute__((section(".srambss")));
 extern uint32_t overlay_0x20000478 __attribute__((section(".srambss")));
 
-bool overlay_FLASH_RebootToBootloader(void) __attribute__((section(".sramtext")));
+void overlay_FLASH_RebootToBootloader(void) __attribute__((noreturn)) __attribute__((section(".sramtext")));
 bool overlay_FLASH_IsBusy(void) __attribute__((section(".sramtext")));
 bool overlay_FLASH_IsInitComplete(void) __attribute__((section(".sramtext")));
 void overlay_FLASH_Start(void) __attribute__((section(".sramtext")));