diff --git a/src/aircraft_cmd.cpp b/src/aircraft_cmd.cpp
index caa6bfa856..d0dd6f6d86 100644
--- a/src/aircraft_cmd.cpp
+++ b/src/aircraft_cmd.cpp
@@ -237,7 +237,7 @@ uint16 AircraftDefaultCargoCapacity(CargoID cid, const AircraftVehicleInfo *avi)
  */
 int32 CmdBuildAircraft(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
 {
-	if (!IsEngineBuildable(p1, VEH_AIRCRAFT, _current_player)) return_cmd_error(STR_ENGINE_NOT_BUILDABLE);
+	if (!IsEngineBuildable(p1, VEH_AIRCRAFT, _current_player)) return_cmd_error(STR_AIRCRAFT_NOT_AVAILABLE);
 
 	const AircraftVehicleInfo *avi = AircraftVehInfo(p1);
 	int32 value = EstimateAircraftCost(avi);
diff --git a/src/lang/english.txt b/src/lang/english.txt
index c32c0fca23..e34670cdbf 100644
--- a/src/lang/english.txt
+++ b/src/lang/english.txt
@@ -3012,7 +3012,10 @@ STR_REPLACE_REMOVE_WAGON                                        :{BLACK}Wagon re
 STR_REPLACE_REMOVE_WAGON_HELP                                   :{BLACK}Make autoreplace keep the length of a train the same by removing wagons (starting at the front), if replacing the engine would make the train longer.
 STR_REPLACE_ENGINE_WAGON_SELECT                                 :{BLACK}Replacing: {ORANGE}{SKIP}{SKIP}{STRING}
 STR_REPLACE_ENGINE_WAGON_SELECT_HELP                            :{BLACK} EXPERIMENTAL FEATURE {}Switch between engine and wagon replacement windows.{}Wagon replacement will only be done if the new wagon can be refitted into carrying the same type of cargo as the old one. This is checked for each wagon when the actual replacement takes place.
-STR_ENGINE_NOT_BUILDABLE                                        :{WHITE}Engine is not buildable
+STR_RAIL_VEHICLE_NOT_AVAILABLE                                  :{WHITE}Vehicle is not available
+STR_ROAD_VEHICLE_NOT_AVAILABLE                                  :{WHITE}Vehicle is not available
+STR_SHIP_NOT_AVAILABLE                                          :{WHITE}Ship is not available
+STR_AIRCRAFT_NOT_AVAILABLE                                      :{WHITE}Aircraft is not available
 
 STR_ENGINES                                                     :Engines
 STR_WAGONS                                                      :Wagons
diff --git a/src/roadveh_cmd.cpp b/src/roadveh_cmd.cpp
index ede670d0a4..b0cd7c946d 100644
--- a/src/roadveh_cmd.cpp
+++ b/src/roadveh_cmd.cpp
@@ -131,7 +131,7 @@ int32 CmdBuildRoadVeh(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
 	UnitID unit_num;
 	Engine *e;
 
-	if (!IsEngineBuildable(p1, VEH_ROAD, _current_player)) return_cmd_error(STR_ENGINE_NOT_BUILDABLE);
+	if (!IsEngineBuildable(p1, VEH_ROAD, _current_player)) return_cmd_error(STR_ROAD_VEHICLE_NOT_AVAILABLE);
 
 	SET_EXPENSES_TYPE(EXPENSES_NEW_VEHICLES);
 
diff --git a/src/ship_cmd.cpp b/src/ship_cmd.cpp
index 0fde8ce5fe..cf66879988 100644
--- a/src/ship_cmd.cpp
+++ b/src/ship_cmd.cpp
@@ -844,7 +844,7 @@ int32 CmdBuildShip(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
 	UnitID unit_num;
 	Engine *e;
 
-	if (!IsEngineBuildable(p1, VEH_SHIP, _current_player)) return_cmd_error(STR_ENGINE_NOT_BUILDABLE);
+	if (!IsEngineBuildable(p1, VEH_SHIP, _current_player)) return_cmd_error(STR_SHIP_NOT_AVAILABLE);
 
 	SET_EXPENSES_TYPE(EXPENSES_NEW_VEHICLES);
 
diff --git a/src/train_cmd.cpp b/src/train_cmd.cpp
index 7a0b839f96..03754b03ed 100644
--- a/src/train_cmd.cpp
+++ b/src/train_cmd.cpp
@@ -704,7 +704,7 @@ static void AddRearEngineToMultiheadedTrain(Vehicle* v, Vehicle* u, bool buildin
 int32 CmdBuildRailVehicle(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
 {
 	/* Check if the engine-type is valid (for the player) */
-	if (!IsEngineBuildable(p1, VEH_TRAIN, _current_player)) return_cmd_error(STR_ENGINE_NOT_BUILDABLE);
+	if (!IsEngineBuildable(p1, VEH_TRAIN, _current_player)) return_cmd_error(STR_RAIL_VEHICLE_NOT_AVAILABLE);
 
 	/* Check if the train is actually being built in a depot belonging
 	 * to the player. Doesn't matter if only the cost is queried */