diff --git a/bacnet-stack/demo/readfile/readfile.c b/bacnet-stack/demo/readfile/readfile.c
index 3ef48e98..d930af5e 100644
--- a/bacnet-stack/demo/readfile/readfile.c
+++ b/bacnet-stack/demo/readfile/readfile.c
@@ -38,6 +38,7 @@
 #include "npdu.h"
 #include "apdu.h"
 #include "device.h"
+#include "net.h"
 #include "datalink.h"
 #include "whois.h"
 /* some demo stuff needed */
@@ -56,8 +57,6 @@ static bool End_Of_File_Detected = false;
 static bool Error_Detected = false;
 static uint8_t Current_Invoke_ID = 0;
 
-#define MIN(X,Y) ((X) < (Y) ? : (X) : (Y))
-
 static void Atomic_Read_File_Error_Handler(
   BACNET_ADDRESS *src,
   uint8_t invoke_id,
@@ -362,6 +361,7 @@ int main(int argc, char *argv[])
   address_init();
   Init_Service_Handlers();
   /* configure standard BACnet/IP port */
+  bip_set_interface("eth0"); /* for linux */
   bip_set_port(0xBAC0);
   if (!bip_init())
     return 1;
diff --git a/bacnet-stack/readfile.mak b/bacnet-stack/readfile.mak
index 5f280618..cd9349ac 100644
--- a/bacnet-stack/readfile.mak
+++ b/bacnet-stack/readfile.mak
@@ -17,11 +17,8 @@ CFLAGS  = -Wall -g $(INCLUDES) $(DEFINES)
 TARGET = readfile
 
 SRCS = demo/readfile/readfile.c \
-       ports/linux/ethernet.c \
-       ports/linux/arcnet.c \
        ports/linux/bip-init.c \
        bip.c \
-       dlmstp.c \
        demo/handler/txbuf.c \
        demo/handler/noserv.c \
        demo/handler/h_whois.c \