diff --git a/arch/sh/Makefile b/arch/sh/Makefile
index 0047666..336f33a 100644
--- a/arch/sh/Makefile
+++ b/arch/sh/Makefile
@@ -31,7 +31,7 @@
 endif
 
 cflags-$(CONFIG_CPU_SH2)		:= $(call cc-option,-m2,)
-cflags-$(CONFIG_CPU_J2)			:= $(call cc-option,-mj2,)
+cflags-$(CONFIG_CPU_J2)			+= $(call cc-option,-mj2,)
 cflags-$(CONFIG_CPU_SH2A)		+= $(call cc-option,-m2a,) \
 					   $(call cc-option,-m2a-nofpu,) \
 					   $(call cc-option,-m4-nofpu,)