diff --git a/projects/openttd.vcproj b/projects/openttd.vcproj
index 9b17f97be8..f95c9977b0 100644
--- a/projects/openttd.vcproj
+++ b/projects/openttd.vcproj
@@ -416,6 +416,9 @@
 			<File
 				RelativePath=".\..\src\depot.h">
 			</File>
+			<File
+				RelativePath=".\..\src\direction.h">
+			</File>
 			<File
 				RelativePath=".\..\src\music\dmusic.h">
 			</File>
diff --git a/projects/openttd_vs80.vcproj b/projects/openttd_vs80.vcproj
index 37a7af0cc3..1dce3d9be5 100644
--- a/projects/openttd_vs80.vcproj
+++ b/projects/openttd_vs80.vcproj
@@ -783,6 +783,10 @@
 				RelativePath=".\..\src\depot.h"
 				>
 			</File>
+			<File
+				RelativePath="..\src\direction.h"
+				>
+			</File>
 			<File
 				RelativePath=".\..\src\music\dmusic.h"
 				>
diff --git a/source.list b/source.list
index 1f7f1f1e92..a7bfb2ebf1 100644
--- a/source.list
+++ b/source.list
@@ -106,6 +106,7 @@ date.h
 debug.h
 video/dedicated_v.h
 depot.h
+direction.h
 music/dmusic.h
 driver.h
 economy.h