--- a/projects/openttd.vcproj	Thu Mar 15 22:49:26 2007 +0000
+++ b/projects/openttd.vcproj	Thu Mar 15 23:13:13 2007 +0000
@@ -980,6 +980,9 @@
 				RelativePath=".\..\src\ai\ai.h">
 			</File>
 			<File
+				RelativePath=".\..\src\ai\ai_factory.hpp">
+			</File>
+			<File
 				RelativePath=".\..\src\ai\ai_squirrel.cpp">
 			</File>
 			<File