diff --git a/board/renesas/sh7753evb/Makefile b/board/renesas/sh7753evb/Makefile
index f7c8e94..4293142 100644
--- a/board/renesas/sh7753evb/Makefile
+++ b/board/renesas/sh7753evb/Makefile
@@ -4,4 +4,4 @@
 # SPDX-License-Identifier:	GPL-2.0+
 
 obj-y	:= sh7753evb.o spi-boot.o
-obj-y	+= lowlevel_init.o
+extra-y	+= lowlevel_init.o