--- a/Makefile	Sat Jul 21 22:44:02 2018 +0900
+++ b/Makefile	Sun Jul 22 05:48:04 2018 +0900
@@ -22,7 +22,7 @@
 # will be installed to ".."
 BIN=a09 v09 v09c d09 $(SIM_BIN) v09.rom 
 
-TARGETS=$(BIN) $(APPS)  vdisk.o
+TARGETS=$(BIN) $(APPS)  
 
 OTHER=monitor.s makerom
 
@@ -33,11 +33,11 @@
 a09 : a09.o os9crc.o
 	$(CC)  $(CFLAGS) $(V09FLAGS) a09.o os9crc.o -o $@
 
-v09: v09.o engine.o io.o d09.o trace.o
+v09: v09.o engine.o io.o d09.o trace.o vdisk.o
 	$(CC) -o v09 $(CFLAGS) v09.o engine.o io.o d09.o trace.o
 
 # with Coco MMU 
-v09c: v09.c engine.c io.c d09.o trace.o
+v09c: v09.c engine.c io.c d09.o trace.o vdisk.o
 	$(CC) -o v09c $(CFLAGS) $(V09FLAGS) -DIOPAGE=0xff80 -DUSE_MMU=1 -DUSE_VDISK v09.c engine.c io.c d09.o trace.c vdisk.c
 
 a09.o : a09.c