1 files changed, 4 insertions, 2 deletions
diff --git a/include/hw/usb.h b/include/hw/usb.h
index e29a37635b..e6ec0c891c 100644
--- a/include/hw/usb.h
+++ b/include/hw/usb.h
@@ -29,6 +29,7 @@
 #include "hw/qdev-core.h"
 #include "qemu/iov.h"
 #include "qemu/queue.h"
+#include "qom/object.h"
 
 /* Constants related to the USB / PCI interaction */
 #define USB_SBRN    0x60 /* Serial Bus Release Number Register */
@@ -264,6 +265,7 @@ struct USBDevice {
 };
 
 #define TYPE_USB_DEVICE "usb-device"
+typedef struct USBDeviceClass USBDeviceClass;
 #define USB_DEVICE(obj) \
      OBJECT_CHECK(USBDevice, (obj), TYPE_USB_DEVICE)
 #define USB_DEVICE_CLASS(klass) \
@@ -274,7 +276,7 @@ struct USBDevice {
 typedef void (*USBDeviceRealize)(USBDevice *dev, Error **errp);
 typedef void (*USBDeviceUnrealize)(USBDevice *dev);
 
-typedef struct USBDeviceClass {
+struct USBDeviceClass {
     DeviceClass parent_class;
 
     USBDeviceRealize realize;
@@ -346,7 +348,7 @@ typedef struct USBDeviceClass {
     const char *product_desc;
     const USBDesc *usb_desc;
     bool attached_settable;
-} USBDeviceClass;
+};
 
 typedef struct USBPortOps {
     void (*attach)(USBPort *port);