diff --git a/bootdevice.c b/bootdevice.c
index 673bfef60ccd5ddf561723cb829923076fe09c50..3cdc0d7b2249f73804055a767906462b6980532b 100644
--- a/bootdevice.c
+++ b/bootdevice.c
@@ -1,7 +1,7 @@
 /*
  * QEMU Boot Device Implement
  *
- * Copyright (c) 2014 HUAWEI TECHNOLOGIES CO.,LTD.
+ * Copyright (c) 2014 HUAWEI TECHNOLOGIES CO., LTD.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
diff --git a/tests/usb-hcd-ohci-test.c b/tests/usb-hcd-ohci-test.c
index 1160bde8408ac04679ff6cd333be765941a80ecc..fa592d487ce7ff79346a630b7d88a29e0317fd53 100644
--- a/tests/usb-hcd-ohci-test.c
+++ b/tests/usb-hcd-ohci-test.c
@@ -1,7 +1,7 @@
 /*
  * QTest testcase for USB OHCI controller
  *
- * Copyright (c) 2014 HUAWEI TECHNOLOGIES CO.,LTD.
+ * Copyright (c) 2014 HUAWEI TECHNOLOGIES CO., LTD.
  *
  * This work is licensed under the terms of the GNU GPL, version 2 or later.
  * See the COPYING file in the top-level directory.
diff --git a/tests/usb-hcd-uhci-test.c b/tests/usb-hcd-uhci-test.c
index 6d631cf36659dc76ba6d03453ac6b36b3e89feb3..a96b71683c8ca0b2f91101f0464be1d6e275d735 100644
--- a/tests/usb-hcd-uhci-test.c
+++ b/tests/usb-hcd-uhci-test.c
@@ -1,7 +1,7 @@
 /*
  * QTest testcase for USB UHCI controller
  *
- * Copyright (c) 2014 HUAWEI TECHNOLOGIES CO.,LTD.
+ * Copyright (c) 2014 HUAWEI TECHNOLOGIES CO., LTD.
  *
  * This work is licensed under the terms of the GNU GPL, version 2 or later.
  * See the COPYING file in the top-level directory.
diff --git a/tests/usb-hcd-xhci-test.c b/tests/usb-hcd-xhci-test.c
index adf261e9635e7fe957278161c6563ced7e2f6fcf..56ab367316dbe233996ebc52e30713afadcc686a 100644
--- a/tests/usb-hcd-xhci-test.c
+++ b/tests/usb-hcd-xhci-test.c
@@ -1,7 +1,7 @@
 /*
  * QTest testcase for USB xHCI controller
  *
- * Copyright (c) 2014 HUAWEI TECHNOLOGIES CO.,LTD.
+ * Copyright (c) 2014 HUAWEI TECHNOLOGIES CO., LTD.
  *
  * This work is licensed under the terms of the GNU GPL, version 2 or later.
  * See the COPYING file in the top-level directory.