diff --git a/jsprit-core/src/main/java/jsprit/core/algorithm/state/UpdateVehicleDependentPracticalTimeWindows.java b/jsprit-core/src/main/java/jsprit/core/algorithm/state/UpdateVehicleDependentPracticalTimeWindows.java
index 12da15ef..29336dc0 100644
--- a/jsprit-core/src/main/java/jsprit/core/algorithm/state/UpdateVehicleDependentPracticalTimeWindows.java
+++ b/jsprit-core/src/main/java/jsprit/core/algorithm/state/UpdateVehicleDependentPracticalTimeWindows.java
@@ -69,7 +69,7 @@ public class UpdateVehicleDependentPracticalTimeWindows implements ReverseActivi
             double potentialLatestArrivalTimeAtCurrAct = latestArrTimeAtPrevAct - transportCosts.getBackwardTransportTime(activity.getLocationId(), prevLocation,
                     latestArrTimeAtPrevAct, route.getDriver(), vehicle) - activity.getOperationTime();
             double latestArrivalTime = Math.min(activity.getTheoreticalLatestOperationStartTime(), potentialLatestArrivalTimeAtCurrAct);
-            stateManager.putActivityState(activity, vehicle, StateFactory.LATEST_OPERATION_START_TIME, latestArrivalTime);
+            stateManager.putInternalTypedActivityState(activity, vehicle, StateFactory.LATEST_OPERATION_START_TIME, latestArrivalTime);
             latest_arrTimes_at_prevAct[vehicle.getVehicleTypeIdentifier().getIndex()] = latestArrivalTime;
             location_of_prevAct[vehicle.getVehicleTypeIdentifier().getIndex()] = activity.getLocationId();
         }