diff --git a/wetb/hawc2/cluster_simulation.py b/wetb/hawc2/cluster_simulation.py
index d364cff33103bcbe79f3986f70ab1fdf28d18828..544cde2fb5761169ba2b58ec2f9d2cf0fd8fbb8c 100644
--- a/wetb/hawc2/cluster_simulation.py
+++ b/wetb/hawc2/cluster_simulation.py
@@ -1,5 +1,5 @@
 from wetb.hawc2.simulation import Simulation, SimulationThread
-import os
+import os  
 import sys
 from threading import  Thread
 class ClusterSimulation(Simulation):