diff --git a/Makefile b/Makefile
index ac49c3c..d63b397 100644
--- a/Makefile
+++ b/Makefile
@@ -10,9 +10,6 @@ ${PROG}: ${OBJS}
 
 ${OBJS}: config.h
 
-config.h: config.def.h
-	cp config.def.h $@
-
 .c.o:
 	${CC} ${CFLAGS} -c $<
 
diff --git a/config.def.h b/config.h
similarity index 100%
rename from config.def.h
rename to config.h