diff --git a/hw/usb/hcd-ehci-sysbus.c b/hw/usb/hcd-ehci-sysbus.c
index 8d4738565e..b22fb258be 100644
--- a/hw/usb/hcd-ehci-sysbus.c
+++ b/hw/usb/hcd-ehci-sysbus.c
@@ -33,6 +33,8 @@ static const VMStateDescription vmstate_ehci_sysbus = {
 
 static Property ehci_sysbus_properties[] = {
     DEFINE_PROP_UINT32("maxframes", EHCISysBusState, ehci.maxframes, 128),
+    DEFINE_PROP_BOOL("companion-enable", EHCISysBusState, ehci.companion_enable,
+                     false),
     DEFINE_PROP_END_OF_LIST(),
 };