diff --git a/aman/sys/aco/RunwayManager.py b/aman/sys/aco/RunwayManager.py
index 887b7f3..2613f8f 100644
--- a/aman/sys/aco/RunwayManager.py
+++ b/aman/sys/aco/RunwayManager.py
@@ -68,7 +68,7 @@ class RunwayManager:
             else:
                 reference = node.ArrivalCandidates[runway.Runway.Name].InitialArrivalTime
 
-            eta, _ = self.calculateEarliestArrivalTime(runway.Runway.Name, node)
+            eta, _ = self.calculateEarliestArrivalTime(runway.Runway.Name, node, useETA, earliestArrivalTime)
             if None == delay:
                 delay = eta - reference
                 candidate = runway