diff --git a/include/linux/dcbnl.h b/include/linux/dcbnl.h
index b7cdbb4373df..8723491f7dfd 100644
--- a/include/linux/dcbnl.h
+++ b/include/linux/dcbnl.h
@@ -22,8 +22,6 @@
 
 #include <linux/types.h>
 
-#define DCB_PROTO_VERSION 1
-
 struct dcbmsg {
 	__u8               dcb_family;
 	__u8               cmd;