diff --git a/aman/sys/aco/Ant.py b/aman/sys/aco/Ant.py
index 7b2ba0e..b23186c 100644
--- a/aman/sys/aco/Ant.py
+++ b/aman/sys/aco/Ant.py
@@ -103,7 +103,7 @@ class Ant:
         self.Sequence.append(first)
         self.SequenceDelay += self.associateInbound(self.Configuration.Inbounds[first], self.Configuration.EarliestArrivalTime)
 
-        while True:
+        while 1:
             index = self.selectNextLandingIndex(self.Sequence[-1])
             if None == index:
                 break