diff --git a/stage1/Makefile b/stage1/Makefile
index 8c2b5bd3..fd9bdd46 100644
--- a/stage1/Makefile
+++ b/stage1/Makefile
@@ -61,8 +61,8 @@ ASFLAGS:=$(CFLAGS)
 BOOTLOADER_PARTITION_SIZE?=$$(( $(WOLFBOOT_PARTITION_BOOT_ADDRESS) - $(ARCH_FLASH_OFFSET)))
 
 ifeq ($(WOLFBOOT_STAGE1_SIZE),)
-	# default is end of 4KB region (0x0FFC)
-	WOLFBOOT_STAGE1_SIZE=0x1000
+  # default is end of 4KB region (0x0FFC)
+  WOLFBOOT_STAGE1_SIZE=0x1000
 endif
 
 CFLAGS+=\