diff --git a/co-simulation/fed/mosaic-carma-cloud/src/test/java/org/eclipse/mosaic/fed/carmacloud/ambassador/CarmaCloudRegistrationReceiverTest.java b/co-simulation/fed/mosaic-carma-cloud/src/test/java/org/eclipse/mosaic/fed/carmacloud/ambassador/CarmaCloudRegistrationReceiverTest.java
index 26d65a95..9127ee9c 100644
--- a/co-simulation/fed/mosaic-carma-cloud/src/test/java/org/eclipse/mosaic/fed/carmacloud/ambassador/CarmaCloudRegistrationReceiverTest.java
+++ b/co-simulation/fed/mosaic-carma-cloud/src/test/java/org/eclipse/mosaic/fed/carmacloud/ambassador/CarmaCloudRegistrationReceiverTest.java
@@ -78,7 +78,7 @@ public void testMessageReceive() throws Exception {
 
          // Setup the registration receiver
          CarmaCloudRegistrationReceiver receiver = new CarmaCloudRegistrationReceiver();
-         FieldSetter.setField(receiver, receiver.getClass().getDeclaredField("m_oSrvr"), MockServer);
+         FieldSetter.setField(receiver, receiver.getClass().getDeclaredField("srvr"), MockServer);
          receiver.run(); // multi-threading not needed here
 
          // Verify that the message was received correctly