diff --git a/projects/openttd.vcproj b/projects/openttd.vcproj
index 8062e4f335..90785e5d8e 100644
--- a/projects/openttd.vcproj
+++ b/projects/openttd.vcproj
@@ -383,6 +383,9 @@
 		<Filter
 			Name="Header Files"
 			Filter="">
+			<File
+				RelativePath=".\..\src\aircraft.h">
+			</File>
 			<File
 				RelativePath=".\..\src\airport.h">
 			</File>
diff --git a/projects/openttd_vs80.vcproj b/projects/openttd_vs80.vcproj
index 3705df9df8..a22b02c928 100644
--- a/projects/openttd_vs80.vcproj
+++ b/projects/openttd_vs80.vcproj
@@ -666,6 +666,9 @@
 		<Filter
 			Name="Header Files"
 			Filter="">
+			<File
+				RelativePath=".\..\src\aircraft.h">
+			</File>
 			<File
 				RelativePath=".\..\src\airport.h">
 			</File>
diff --git a/source.list b/source.list
index 377d6e50af..5966fa0db1 100644
--- a/source.list
+++ b/source.list
@@ -95,6 +95,7 @@ widget.cpp
 window.cpp
 
 # Header Files
+aircraft.h
 airport.h
 airport_movement.h
 aystar.h