--- a/openttd.vcproj	Thu Oct 05 01:43:49 2006 +0000
+++ b/openttd.vcproj	Thu Oct 05 02:26:27 2006 +0000
@@ -428,6 +428,9 @@
 			Name="Header Files"
 			Filter="h;hpp;hxx;hm;inl">
 			<File
+				RelativePath=".\aircraft.h">
+			</File>
+			<File
 				RelativePath=".\airport.h">
 			</File>
 			<File