diff --git a/projects/openttd_vs80.vcproj b/projects/openttd_vs80.vcproj
--- a/projects/openttd_vs80.vcproj
+++ b/projects/openttd_vs80.vcproj
@@ -1580,10 +1580,6 @@
 				>
 			</File>
 			<File
-				RelativePath=".\..\src\variables.h"
-				>
-			</File>
-			<File
 				RelativePath=".\..\src\vehicle_base.h"
 				>
 			</File>