diff --git a/src/include/netif/etharp.h b/src/include/netif/etharp.h
index ce008e71..75338d1f 100644
--- a/src/include/netif/etharp.h
+++ b/src/include/netif/etharp.h
@@ -220,10 +220,10 @@ err_t ethernet_input(struct pbuf *p, struct netif *netif);
 
 extern const struct eth_addr ethbroadcast, ethzero;
 
-#endif /* LWIP_ARP || LWIP_ETHERNET */
-
 #ifdef __cplusplus
 }
 #endif
 
+#endif /* LWIP_ARP || LWIP_ETHERNET */
+
 #endif /* LWIP_HDR_NETIF_ARP_H */