diff --git a/wetb/hawc2/simulation.py b/wetb/hawc2/simulation.py
index 79b2c198db1058c7f7b72e25f96cbe680e25f411..e5a8d2b9db5de4b6c087ed95e292a39eb76e7240 100755
--- a/wetb/hawc2/simulation.py
+++ b/wetb/hawc2/simulation.py
@@ -635,7 +635,7 @@ cp -R . /scratch/$USER/$PBS_JOBID
 cd /scratch/$USER/$PBS_JOBID
 pwd
 echo "---------------------"
-%s -c "from wetb.hawc2.cluster_simulation import ClusterSimulation;ClusterSimulation('.','%s', ('%s',%s'))"
+%s -c "from wetb.hawc2.cluster_simulation import ClusterSimulation;ClusterSimulation('.','%s', ('%s','%s'))"
 echo "---------------------"
 echo $?
 echo "---------------------"