diff --git a/ttd.dsp b/ttd.dsp
--- a/ttd.dsp
+++ b/ttd.dsp
@@ -212,7 +212,7 @@ SOURCE=.\gfx.c
 # End Source File
 # Begin Source File
 
-SOURCE=.\grfspecial.c
+SOURCE=.\newgrf.c
 # End Source File
 # Begin Source File