diff --git a/drivers/net/mac89x0.c b/drivers/net/mac89x0.c
index a19b595..2a66e5b 100644
--- a/drivers/net/mac89x0.c
+++ b/drivers/net/mac89x0.c
@@ -289,7 +289,7 @@
 	err = register_netdev(dev);
 	if (err)
 		goto out1;
-	return 0;
+	return NULL;
 out1:
 	nubus_writew(0, dev->base_addr + ADD_PORT);
 out: