diff --git a/components/net/lwip-1.4.1/src/include/netif/etharp.h b/components/net/lwip-1.4.1/src/include/netif/etharp.h
index 859608df912be39c04bae1b855d29484c1aac226..872f48b10b2a8b41a8b04cd5d120314825bb4c09 100644
--- a/components/net/lwip-1.4.1/src/include/netif/etharp.h
+++ b/components/net/lwip-1.4.1/src/include/netif/etharp.h
@@ -139,6 +139,7 @@ PACK_STRUCT_END
 #define ETHTYPE_VLAN      0x8100U
 #define ETHTYPE_PPPOEDISC 0x8863U  /* PPP Over Ethernet Discovery Stage */
 #define ETHTYPE_PPPOE     0x8864U  /* PPP Over Ethernet Session Stage */
+#define ETHTYPE_EAPOL     0x888eU  /* EAPOL */
 
 /** MEMCPY-like macro to copy to/from struct eth_addr's that are local variables
  * or known to be 32-bit aligned within the protocol header. */