diff --git a/sys/dev/ofw/ofw_pci.c b/sys/dev/ofw/ofw_pci.c
--- a/sys/dev/ofw/ofw_pci.c
+++ b/sys/dev/ofw/ofw_pci.c
@@ -77,7 +77,7 @@
 	device_t parent;
 
 	parent = device_get_parent(dev);
-	if (ofw_bus_get_node(parent) <= 0)
+	if (ofw_bus_get_node(parent) == -1)
 		return (ENXIO);
 
 	device_set_desc(dev, "OFW PCI bus");