diff --git a/board/netconf/rootfs/lib/infix/factory/gen-interfaces b/board/netconf/rootfs/lib/infix/factory/gen-interfaces
index c7acf42f..79a4c74b 100755
--- a/board/netconf/rootfs/lib/infix/factory/gen-interfaces
+++ b/board/netconf/rootfs/lib/infix/factory/gen-interfaces
@@ -19,7 +19,7 @@ phys_ifaces=$(ip -d -j link show | jq -r '
 	 .[] |
 	 select(.link_type == "ether") |
 	 select(.group != "internal")  |
-	 select(has("linkinfo") | not) |
+	 select(has("parentbus")) |
 	 .ifname')
 
 cat <<EOF
diff --git a/src/confd/src/ietf-interfaces.c b/src/confd/src/ietf-interfaces.c
index 416c8236..94b46a77 100644
--- a/src/confd/src/ietf-interfaces.c
+++ b/src/confd/src/ietf-interfaces.c
@@ -50,7 +50,7 @@ static bool iface_is_phys(const char *ifname)
 	if (strcmp(attr, "ether"))
 		goto out_free;
 
-	if (!json_unpack(link, "[{s: { s:s }}]", "linkinfo", "info_kind", &attr))
+	if (json_unpack(link, "[{s:s}]", "parentbus", &attr))
 		goto out_free;
 
 	is_phys = true;