diff --git a/sys/dev/puc/puc.c b/sys/dev/puc/puc.c
index 9cde9d6d8bef..06106b972913 100644
--- a/sys/dev/puc/puc.c
+++ b/sys/dev/puc/puc.c
@@ -282,6 +282,8 @@ puc_attach(device_t dev, const struct puc_device_description *desc)
 		    sc->sc_desc->ports[i].offset);
 		puc_print_resource_list(&pdev->resources);
 #endif
+		device_set_flags(sc->sc_ports[i].dev,
+		    sc->sc_desc->ports[i].flags);
 		if (device_probe_and_attach(sc->sc_ports[i].dev) != 0) {
 			if (sc->barmuxed) {
 				bus_space_unmap(rman_get_bustag(rle->res),
diff --git a/sys/dev/puc/pucvar.h b/sys/dev/puc/pucvar.h
index 46f8e986e446..1b8902679ef7 100644
--- a/sys/dev/puc/pucvar.h
+++ b/sys/dev/puc/pucvar.h
@@ -78,6 +78,7 @@ struct puc_device_description {
 		int	bar;
 		int	offset;
 		u_int	serialfreq;
+		u_int	flags;
 	} ports[PUC_MAX_PORTS];
 };