diff --git a/src/include/lwip/etharp.h b/src/include/lwip/etharp.h
index 389cf9c4..04a56e65 100644
--- a/src/include/lwip/etharp.h
+++ b/src/include/lwip/etharp.h
@@ -58,7 +58,7 @@ extern "C" {
 
 #if LWIP_IPV4 && LWIP_ARP /* don't build if not configured for use in lwipopts.h */
 
-#include "lwip/prot/arp.h"
+#include "lwip/prot/etharp.h"
 
 #define SIZEOF_ETHARP_PACKET    (SIZEOF_ETH_HDR + SIZEOF_ETHARP_HDR)
 #if ETHARP_SUPPORT_VLAN && defined(LWIP_HOOK_VLAN_SET)
diff --git a/src/include/lwip/prot/arp.h b/src/include/lwip/prot/etharp.h
similarity index 96%
rename from src/include/lwip/prot/arp.h
rename to src/include/lwip/prot/etharp.h
index 382c6a92..ec78305b 100644
--- a/src/include/lwip/prot/arp.h
+++ b/src/include/lwip/prot/etharp.h
@@ -34,8 +34,8 @@
  * Author: Adam Dunkels <adam@sics.se>
  *
  */
-#ifndef LWIP_HDR_PROT_ARP_H
-#define LWIP_HDR_PROT_ARP_H
+#ifndef LWIP_HDR_PROT_ETHARP_H
+#define LWIP_HDR_PROT_ETHARP_H
 
 #include "lwip/arch.h"
 #include "lwip/prot/ethernet.h"
@@ -84,9 +84,8 @@ enum etharp_opcode {
   ARP_REPLY   = 2
 };
 
-
 #ifdef __cplusplus
 }
 #endif
 
-#endif /* LWIP_HDR_PROT_ARP_H */
+#endif /* LWIP_HDR_PROT_ETHARP_H */