diff --git a/firmware/hw_layer/ports/cypress/backup_ram.cpp b/firmware/hw_layer/ports/cypress/backup_ram.cpp
index 9b66250127..47f1cdd408 100644
--- a/firmware/hw_layer/ports/cypress/backup_ram.cpp
+++ b/firmware/hw_layer/ports/cypress/backup_ram.cpp
@@ -22,6 +22,7 @@ const size_t backupSize = (BACKUP_RAM_NUM + 1) * sizeof(uint32_t);
 
 static void backupInit() {
 	static_assert(backupSize <= BACKUP_FLASH_SIZE, "Backup flash overflow");
+	static_assert(BACKUP_FLASH_ADDR != (flashaddr_t)nullptr, "Backup address undefined");
 
 	// first, load the whole buffer into the memory
 	intFlashRead((flashaddr_t)BACKUP_FLASH_ADDR, (char *)backupRam, backupSize);
@@ -34,7 +35,7 @@ static void backupInit() {
 	// we cannot trust the saved data anymore, until it's saved in backupRamFlush()
 	// so we mark is as 'pending'
 	backupRam[backupStateOffset] = BACKUP_PENDING;
-	intFlashWrite(BACKUP_FLASH_ADDR + backupStateOffset, (char *)backupRam, sizeof(backupRam[backupStateOffset]));
+	intFlashWrite((flashaddr_t)BACKUP_FLASH_ADDR + backupStateOffset, (char *)backupRam, sizeof(backupRam[backupStateOffset]));
 	
 	wasLoaded = true;
 }