diff --git a/Makefile b/Makefile
index 0994a34..1811a33 100644
--- a/Makefile
+++ b/Makefile
@@ -32,6 +32,8 @@ SED		:= sed
 TAR		:= tar
 LINK		= $(CC) $(OBJS-$@) -o $@ $(LDFLAGS) $(LDFLAGS-$@) $(LIBS-$@)
 
+CFLAGS		?= -Wall -Werror
+
 SED_REPLACE	:= -e 's:@VERSION@:$(FULL_VERSION):g' \
 			-e 's:@prefix@:$(prefix):g' \
 			-e 's:@sysconfdir@:$(sysconfdir):g' \