diff --git a/hw/usb-hub.c b/hw/usb-hub.c
index 09c65160c2..7b47079ac4 100644
--- a/hw/usb-hub.c
+++ b/hw/usb-hub.c
@@ -163,6 +163,7 @@ static void usb_hub_attach(USBPort *port1)
     } else {
         port->wPortStatus &= ~PORT_STAT_LOW_SPEED;
     }
+    usb_wakeup(&s->dev);
 }
 
 static void usb_hub_detach(USBPort *port1)