diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c
index 342ca8d89458a7b9aa9edc6124533b0a9a6cd4de..c5b24707753997db84ddcd310ae876f94d8243eb 100644
--- a/net/ipv4/ipconfig.c
+++ b/net/ipv4/ipconfig.c
@@ -1281,9 +1281,9 @@ static int __init ip_auto_config(void)
 	 */
 	if (ic_myaddr == NONE ||
 #ifdef CONFIG_ROOT_NFS
-	    (MAJOR(ROOT_DEV) == UNNAMED_MAJOR
-	     && root_server_addr == NONE
-	     && ic_servaddr == NONE) ||
+	    (root_server_addr == NONE
+	     && ic_servaddr == NONE
+	     && ROOT_DEV == Root_NFS) ||
 #endif
 	    ic_first_dev->next) {
 #ifdef IPCONFIG_DYNAMIC