diff --git a/arch/mips/fw/arc/Makefile b/arch/mips/fw/arc/Makefile
index 4f349ec1ea2da4bb200a1c296d16f27b54650935..e0aaad482b0ebc806e971101a4f701ff30d2848e 100644
--- a/arch/mips/fw/arc/Makefile
+++ b/arch/mips/fw/arc/Makefile
@@ -8,3 +8,5 @@ lib-y				+= cmdline.o env.o file.o identify.o init.o \
 lib-$(CONFIG_ARC_MEMORY)	+= memory.o
 lib-$(CONFIG_ARC_CONSOLE)	+= arc_con.o
 lib-$(CONFIG_ARC_PROMLIB)	+= promlib.o
+
+EXTRA_CFLAGS			+= -Werror