diff --git a/hw/usb/hcd-ehci.c b/hw/usb/hcd-ehci.c
index 8b2dfeda561321cb3b0f6aea70b45bad5c1602c5..f8ed80daee088c5e44fb1953f33703333937126d 100644
--- a/hw/usb/hcd-ehci.c
+++ b/hw/usb/hcd-ehci.c
@@ -852,6 +852,8 @@ static void ehci_wakeup(USBPort *port)
         USBPort *companion = s->companion_ports[port->index];
         if (companion->ops->wakeup) {
             companion->ops->wakeup(companion);
+        } else {
+            qemu_bh_schedule(s->async_bh);
         }
     }
 }