diff --git a/hw/usb/hcd-ehci.c b/hw/usb/hcd-ehci.c
index 60f9f5bdb5..34f7538066 100644
--- a/hw/usb/hcd-ehci.c
+++ b/hw/usb/hcd-ehci.c
@@ -797,7 +797,6 @@ static void ehci_child_detach(USBPort *port, USBDevice *child)
     if (portsc & PORTSC_POWNER) {
         USBPort *companion = s->companion_ports[port->index];
         companion->ops->child_detach(companion, child);
-        companion->dev = NULL;
         return;
     }