diff --git a/vehicle.c b/vehicle.c
index 4fa55907c7..c2628e0d2f 100644
--- a/vehicle.c
+++ b/vehicle.c
@@ -593,6 +593,7 @@ void VehicleEnteredDepotThisTick(Vehicle *v)
 	}
 }
 
+typedef void VehicleTickProc(Vehicle*);
 static VehicleTickProc* _vehicle_tick_procs[] = {
 	Train_Tick,
 	RoadVeh_Tick,
diff --git a/vehicle.h b/vehicle.h
index 40659bfd34..f9279fc1e9 100644
--- a/vehicle.h
+++ b/vehicle.h
@@ -242,7 +242,6 @@ struct Vehicle {
 #define IS_CUSTOM_FIRSTHEAD_SPRITE(x) (x == 0xFD)
 #define IS_CUSTOM_SECONDHEAD_SPRITE(x) (x == 0xFE)
 
-typedef void VehicleTickProc(Vehicle *v);
 typedef void *VehicleFromPosProc(Vehicle *v, void *data);
 
 void VehicleServiceInDepot(Vehicle *v);