diff --git a/aircraft.h b/aircraft.h
index b7c93ee287..15d2bbe270 100644
--- a/aircraft.h
+++ b/aircraft.h
@@ -21,6 +21,6 @@ static inline bool IsAircraftInHangarStopped(const Vehicle* v)
 uint16 AircraftDefaultCargoCapacity(CargoID cid, EngineID engine_type);
 
 void CcCloneAircraft(bool success, TileIndex tile, uint32 p1, uint32 p2);
-inline void HandleAircraftEnterHangar(Vehicle *v);
+void HandleAircraftEnterHangar(Vehicle *v);
 
 #endif /* AIRCRAFT_H */
diff --git a/aircraft_cmd.c b/aircraft_cmd.c
index a64227a975..70336c0dad 100644
--- a/aircraft_cmd.c
+++ b/aircraft_cmd.c
@@ -834,11 +834,9 @@ static void SetAircraftPosition(Vehicle *v, int x, int y, int z)
 }
 
 /** Handle Aircraft specific tasks when a an Aircraft enters a hangar
- * Made inline because it's only called from one location (VehicleEnterDepot)
- * Can't be moved to vehicle.c because it calls static Aircraft specific functions
  * @param *v Vehicle that enters the hangar
  */
-inline void HandleAircraftEnterHangar(Vehicle *v)
+void HandleAircraftEnterHangar(Vehicle *v)
 {
 	Vehicle *u;
 
diff --git a/openttd.vcproj b/openttd.vcproj
index d7ad6bf840..f32b35c037 100644
--- a/openttd.vcproj
+++ b/openttd.vcproj
@@ -427,6 +427,9 @@
 		<Filter
 			Name="Header Files"
 			Filter="h;hpp;hxx;hm;inl">
+			<File
+				RelativePath=".\aircraft.h">
+			</File>
 			<File
 				RelativePath=".\airport.h">
 			</File>
diff --git a/openttd_vs80.vcproj b/openttd_vs80.vcproj
index fabeba1400..832878cfa5 100644
--- a/openttd_vs80.vcproj
+++ b/openttd_vs80.vcproj
@@ -855,6 +855,10 @@
 			Name="Header Files"
 			Filter="h;hpp;hxx;hm;inl"
 			>
+			<File
+				RelativePath=".\aircraft.h"
+				>
+			</File>
 			<File
 				RelativePath=".\airport.h"
 				>