diff --git a/bacnet-stack/demo/server/Makefile b/bacnet-stack/demo/server/Makefile
index af692894..3489f0bc 100644
--- a/bacnet-stack/demo/server/Makefile
+++ b/bacnet-stack/demo/server/Makefile
@@ -10,7 +10,7 @@ TARGET = bacserv
 #BACDL_DEFINE = -DBACDL_ARCNET
 #BACDL_DEFINE = -DBACDL_MSTP
 BACDL_DEFINE = -DBACDL_BIP -DBIP_DEBUG
-BACNET_DEFINES = -DPRINT_ENABLED=1 -DBACAPP_ALL
+BACNET_DEFINES = -DPRINT_ENABLED=1 -DBACAPP_ALL -DBACFILE
 DEFINES = $(BACNET_DEFINES) $(BACDL_DEFINE)
 
 # Directories