diff --git a/contribs/application/src/main/java/org/matsim/application/prepare/pt/CreateTransitScheduleFromGtfs.java b/contribs/application/src/main/java/org/matsim/application/prepare/pt/CreateTransitScheduleFromGtfs.java
index 8200b928c36..5038d1f046c 100644
--- a/contribs/application/src/main/java/org/matsim/application/prepare/pt/CreateTransitScheduleFromGtfs.java
+++ b/contribs/application/src/main/java/org/matsim/application/prepare/pt/CreateTransitScheduleFromGtfs.java
@@ -267,7 +267,6 @@ private static Scenario getScenarioWithPseudoPtNetworkAndTransitVehicles(Network
 			VehicleUtils.setDoorOperationMode(busVehicleType, VehicleType.DoorOperationMode.serial); // first finish boarding, then start alighting
 			VehicleUtils.setAccessTime(busVehicleType, 1.0 / 3.0); // 1s per boarding agent, distributed on 3 doors
 			VehicleUtils.setEgressTime(busVehicleType, 1.0 / 3.0); // 1s per alighting agent, distributed on 3 doors
-			scenario.getTransitVehicles().addVehicleType(busVehicleType);
 
 			addHbefaMapping(busVehicleType, HbefaVehicleCategory.URBAN_BUS);
 			scenario.getTransitVehicles().addVehicleType(busVehicleType);
diff --git a/contribs/application/src/test/java/org/matsim/application/prepare/pt/CreateTransitScheduleFromGtfsTest.java b/contribs/application/src/test/java/org/matsim/application/prepare/pt/CreateTransitScheduleFromGtfsTest.java
index 5b3732f6347..579f2381f4f 100644
--- a/contribs/application/src/test/java/org/matsim/application/prepare/pt/CreateTransitScheduleFromGtfsTest.java
+++ b/contribs/application/src/test/java/org/matsim/application/prepare/pt/CreateTransitScheduleFromGtfsTest.java
@@ -30,6 +30,7 @@ void run() {
 				"--network", network.toString(),
 				"--target-crs", "EPSG:4326",
 				"--date", "2019-01-01",
+				"--validate=true",
 				"--output", output
 		);