diff --git a/board/cm4008/flash.c b/board/cm4008/flash.c
index d6fd519..2e1356f 100644
--- a/board/cm4008/flash.c
+++ b/board/cm4008/flash.c
@@ -72,7 +72,7 @@
 	 */
 	flash_protect (FLAG_PROTECT_SET,
 		       CONFIG_SYS_FLASH_BASE,
-		       CONFIG_SYS_FLASH_BASE + _bss_start - _armboot_start,
+		       CONFIG_SYS_FLASH_BASE + _bss_start_ofs,
 		       &flash_info[0]);
 
 	return size;