diff --git a/sys/dev/usb/ucom.c b/sys/dev/usb/ucom.c
index 235057706cb..51479bf834d 100644
--- a/sys/dev/usb/ucom.c
+++ b/sys/dev/usb/ucom.c
@@ -173,6 +173,7 @@ ucom_attach(device_t self)
         usb_device_set_desc(self, devinfo);
 	printf("%s%d", device_get_name(self), device_get_unit(self));
 #endif
+	sc->sc_dev = self;
 
 	printf(": %s, iclass %d/%d\n", devinfo, id->bInterfaceClass, id->bInterfaceSubClass);
 
diff --git a/sys/dev/usb/umodem.c b/sys/dev/usb/umodem.c
index 07cf6d418ea..4153187bd60 100644
--- a/sys/dev/usb/umodem.c
+++ b/sys/dev/usb/umodem.c
@@ -174,6 +174,7 @@ umodem_attach(device_t self)
         usb_device_set_desc(self, devinfo);
         printf("%s%d", device_get_name(self), device_get_unit(self));
 #endif
+	sc->sc_dev = self;
 
 	printf(": %s, iclass %d/%d\n", devinfo, id->bInterfaceClass, id->bInterfaceSubClass);