diff --git a/contribs/parking/src/main/java/org/matsim/contrib/parking/parkingproxy/ParkingProxyModule.java b/contribs/parking/src/main/java/org/matsim/contrib/parking/parkingproxy/ParkingProxyModule.java
index f356f0911e8..41f179d4977 100644
--- a/contribs/parking/src/main/java/org/matsim/contrib/parking/parkingproxy/ParkingProxyModule.java
+++ b/contribs/parking/src/main/java/org/matsim/contrib/parking/parkingproxy/ParkingProxyModule.java
@@ -92,7 +92,9 @@ public void install() {
 		if (parkingConfig.getObserveOnly()) {
 			super.addControlerListenerBinding().toInstance(walkObserver);
 		} else {
-			super.addControlerListenerBinding().toInstance(new CarEgressWalkChanger(parkingHandler, penaltyFunction, walkObserver, parkingConfig.getIter0Method()));
+			CarEgressWalkChanger walkChanger = new CarEgressWalkChanger(parkingHandler, penaltyFunction, walkObserver, parkingConfig.getIter0Method());
+			super.addControlerListenerBinding().toInstance(walkChanger);
+			super.addControlerListenerBinding().toInstance(walkChanger.getBackChanger());
 		}
 	}