diff --git a/sys/dev/cs/if_csvar.h b/sys/dev/cs/if_csvar.h
index 03c4d5def03..57ee29dc705 100644
--- a/sys/dev/cs/if_csvar.h
+++ b/sys/dev/cs/if_csvar.h
@@ -44,7 +44,7 @@ struct cs_softc {
 	int isa_config;                 /* ISA configuration */
 	int chip_type;			/* Type of chip */
 
-	u_char	enaddr[6];
+	u_char	enaddr[ETHER_ADDR_LEN];
 
 	struct ifmedia media;		/* Media information */