diff --git a/contribs/vsp/src/test/java/org/matsim/contrib/vsp/pt/fare/ChainedPtFareHandlerTest.java b/contribs/vsp/src/test/java/org/matsim/contrib/vsp/pt/fare/ChainedPtFareHandlerTest.java
index f3f7836a943..6b9edf0886c 100644
--- a/contribs/vsp/src/test/java/org/matsim/contrib/vsp/pt/fare/ChainedPtFareHandlerTest.java
+++ b/contribs/vsp/src/test/java/org/matsim/contrib/vsp/pt/fare/ChainedPtFareHandlerTest.java
@@ -70,12 +70,9 @@ void testChainedPtFareHandler() {
 		distanceBased2.setTransactionPartner(DISTANCE_BASED_TRANSACTION_PARTNER);
 		distanceBased2.setMinFare(7.0);
 
-		PtFareParams fareZoneBased1;
-		ptFareConfigGroup.addPtFareParameterSet(fareZoneBased1);
-
 		ptFareConfigGroup.addPtFareParameterSet(fareZoneBased);
-		ptFareConfigGroup.addParameterSet(distanceBased);
-		ptFareConfigGroup.addParameterSet(distanceBased2);
+		ptFareConfigGroup.addPtFareParameterSet(distanceBased);
+		ptFareConfigGroup.addPtFareParameterSet(distanceBased2);
 
 		ptFareConfigGroup.setUpperBoundFactor(2.0);
 
diff --git a/contribs/vsp/src/test/java/org/matsim/contrib/vsp/pt/fare/PtFareConfigGroupTest.java b/contribs/vsp/src/test/java/org/matsim/contrib/vsp/pt/fare/PtFareConfigGroupTest.java
index ed32e9ac859..a7c2f76fe85 100644
--- a/contribs/vsp/src/test/java/org/matsim/contrib/vsp/pt/fare/PtFareConfigGroupTest.java
+++ b/contribs/vsp/src/test/java/org/matsim/contrib/vsp/pt/fare/PtFareConfigGroupTest.java
@@ -19,11 +19,11 @@ void testSamePriority_throws() {
 		PtFareConfigGroup ptFareConfigGroup = ConfigUtils.addOrGetModule(config, PtFareConfigGroup.class);
 		FareZoneBasedPtFareParams fareZoneBased = new FareZoneBasedPtFareParams();
 		fareZoneBased.setOrder(5);
-		ptFareConfigGroup.addParameterSet(fareZoneBased);
+		ptFareConfigGroup.addPtFareParameterSet(fareZoneBased);
 
 		DistanceBasedPtFareParams distanceBased = new DistanceBasedPtFareParams();
 		distanceBased.setOrder(5);
-		ptFareConfigGroup.addParameterSet(distanceBased);
+		ptFareConfigGroup.addPtFareParameterSet(distanceBased);
 
 		Assertions.assertThrows(IllegalArgumentException.class, () -> ptFareConfigGroup.checkConsistency(config));
 	}
@@ -34,11 +34,11 @@ void test_ok() {
 		PtFareConfigGroup ptFareConfigGroup = ConfigUtils.addOrGetModule(config, PtFareConfigGroup.class);
 		FareZoneBasedPtFareParams fareZoneBased = new FareZoneBasedPtFareParams();
 		fareZoneBased.setOrder(5);
-		ptFareConfigGroup.addParameterSet(fareZoneBased);
+		ptFareConfigGroup.addPtFareParameterSet(fareZoneBased);
 
 		DistanceBasedPtFareParams distanceBased = new DistanceBasedPtFareParams();
 		distanceBased.setOrder(10);
-		ptFareConfigGroup.addParameterSet(distanceBased);
+		ptFareConfigGroup.addPtFareParameterSet(distanceBased);
 
 		ptFareConfigGroup.checkConsistency(config);
 	}
diff --git a/contribs/vsp/src/test/java/org/matsim/contrib/vsp/pt/fare/PtTripFareEstimatorTest.java b/contribs/vsp/src/test/java/org/matsim/contrib/vsp/pt/fare/PtTripFareEstimatorTest.java
index b74f341e4de..7c7126b66f9 100644
--- a/contribs/vsp/src/test/java/org/matsim/contrib/vsp/pt/fare/PtTripFareEstimatorTest.java
+++ b/contribs/vsp/src/test/java/org/matsim/contrib/vsp/pt/fare/PtTripFareEstimatorTest.java
@@ -76,7 +76,7 @@ public void setUp() throws Exception {
 		distanceClassLongFareParams.setFareIntercept(1.0);
 		distanceClassLongFareParams.setFareSlope(0.01);
 
-		fare.addParameterSet(distanceFare);
+		fare.addPtFareParameterSet(distanceFare);
 
 		controler = MATSimApplication.prepare(TestScenario.class, config);
 		injector = controler.getInjector();