diff --git a/bochs/iodev/usb/usb_msd.cc b/bochs/iodev/usb/usb_msd.cc
index ff02a3088..81badd221 100644
--- a/bochs/iodev/usb/usb_msd.cc
+++ b/bochs/iodev/usb/usb_msd.cc
@@ -6,7 +6,7 @@
 //
 //  Copyright (c) 2006 CodeSourcery.
 //  Written by Paul Brook
-//  Copyright (C) 2009-2014  The Bochs Project
+//  Copyright (C) 2009-2015  The Bochs Project
 //
 //  This library is free software; you can redistribute it and/or
 //  modify it under the terms of the GNU Lesser General Public
@@ -303,6 +303,7 @@ usb_msd_device_c::~usb_msd_device_c(void)
   if (s.scsi_dev != NULL)
     delete s.scsi_dev;
   if (s.hdimage != NULL) {
+    s.hdimage->close();
     delete s.hdimage;
   } else if (s.cdrom != NULL) {
     delete s.cdrom;