--- a/pppd/plugins/rp-pppoe/pppoe.h
+++ b/pppd/plugins/rp-pppoe/pppoe.h
@@ -52,11 +52,7 @@
 #include <netinet/in.h>
 
 /* Ugly header files on some Linux boxes... */
-#if defined(HAVE_LINUX_IF_H)
-#include <linux/if.h>
-#elif defined(HAVE_NET_IF_H)
 #include <net/if.h>
-#endif
 
 #ifdef HAVE_NET_IF_TYPES_H
 #include <net/if_types.h>
@@ -84,20 +80,7 @@ typedef unsigned long UINT32_t;
 #error Could not find a 32-bit integer type
 #endif
 
-#ifdef HAVE_LINUX_IF_ETHER_H
-#include <linux/if_ether.h>
-#endif
-
-#ifdef HAVE_NETINET_IF_ETHER_H
-#include <sys/types.h>
-
-#ifdef HAVE_SYS_SOCKET_H
-#include <sys/socket.h>
-#endif
-#ifndef HAVE_SYS_DLPI_H
-#include <netinet/if_ether.h>
-#endif
-#endif
+#include <net/ethernet.h>
 
 
 /* Ethernet frame types according to RFC 2516 */
--- a/pppd/plugins/rp-pppoe/Makefile.linux
+++ b/pppd/plugins/rp-pppoe/Makefile.linux
@@ -33,7 +33,7 @@ pppoe-discovery: pppoe-discovery.o debug
 	$(CC) $(LDFLAGS) -o pppoe-discovery pppoe-discovery.o debug.o
 
 pppoe-discovery.o: pppoe-discovery.c
-	$(CC) $(CFLAGS) -c -o pppoe-discovery.o pppoe-discovery.c
+	$(CC) $(CFLAGS) -I../../.. -c -o pppoe-discovery.o pppoe-discovery.c
 
 debug.o: debug.c
 	$(CC) $(CFLAGS) -c -o debug.o debug.c