--- a/driver/wl_linux.c
+++ b/driver/wl_linux.c
@@ -1425,7 +1425,7 @@ wl_alloc_if(wl_info_t *wl, int iftype, u
dev = alloc_etherdev(sizeof(wl_if_t));
wlif = netdev_priv(dev);
bzero(wlif, sizeof(wl_if_t));
- strncpy(dev->name, name, IFNAMSIZ);
+ snprintf(dev->name, IFNAMSIZ, name, subunit);
wlif->type = iftype;
wlif->dev = dev;