diff --git a/include/nuttx/net/arp.h b/include/nuttx/net/arp.h
index e6280317f57..18945770ad7 100644
--- a/include/nuttx/net/arp.h
+++ b/include/nuttx/net/arp.h
@@ -71,7 +71,7 @@
  */
 
 #define ARPHRD_ETHER        1    /* Ethernet */
-#define ARPHRD_IEEE80211    801  /* IEEE 802.11 */
+#define ARPHRD_IEEE80211    801  /* IEEE 802.11 */
 #define ARPHRD_IEEE802154   804  /* IEEE 802.15.4 */
 
 /****************************************************************************