diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h
index 131b127..5ccb6bd 100644
--- a/include/linux/ethtool.h
+++ b/include/linux/ethtool.h
@@ -605,6 +605,7 @@
 #define PORT_MII		0x02
 #define PORT_FIBRE		0x03
 #define PORT_BNC		0x04
+#define PORT_OTHER		0xff
 
 /* Which transceiver to use. */
 #define XCVR_INTERNAL		0x00