diff --git a/openttd.vcproj b/openttd.vcproj
index f32b35c037..b24dffa56a 100644
--- a/openttd.vcproj
+++ b/openttd.vcproj
@@ -695,6 +695,9 @@
 			<File
 				RelativePath=".\depot_gui.c">
 			</File>
+			<File
+				RelativePath=".\build_vehicle_gui.c">
+			</File>
 			<File
 				RelativePath=".\dock_gui.c">
 			</File>