diff --git a/Makefile.vc b/Makefile.vc
index 6e66c730..eeb5d04d 100644
--- a/Makefile.vc
+++ b/Makefile.vc
@@ -31,6 +31,9 @@
 all:	port lib tools
 
 port::
+	cd libtiff
+	$(MAKE) /f Makefile.vc tif_config.h
+	cd..
 	cd port
 	$(MAKE) /f Makefile.vc
 	cd..
diff --git a/port/Makefile.vc b/port/Makefile.vc
index 501f7d74..6122b192 100644
--- a/port/Makefile.vc
+++ b/port/Makefile.vc
@@ -55,6 +55,8 @@ EXTRAFLAGS	= -DHAVE_STRTOULL $(EXTRAFLAGS)
 STRTOULL_OBJ = strtoull.obj
 !ENDIF
 
+INCL = -I..\libtiff
+
 OBJ	= \
 	snprintf.obj \
 	strcasecmp.obj \