1 files changed, 3 insertions, 0 deletions
diff --git a/Makefile b/Makefile
index b08449f..7d10205 100644
--- a/Makefile
+++ b/Makefile
@@ -31,6 +31,9 @@ all: vis
 config.h:
 	cp config.def.h config.h
 
+config.mk:
+	@touch $@
+
 vis: config.h config.mk *.c *.h
 	${CC} ${CFLAGS} ${CFLAGS_VIS} *.c ${LDFLAGS} ${LDFLAGS_VIS} -o $@