diff --git a/scripts/prepare_workload.sh b/scripts/prepare_workload.sh
index c9d1228fdc543ffbcfc6604b1ad9fad78b8c3d9c..836ad600cab3cba269bf326c73968013777454ef 100755
--- a/scripts/prepare_workload.sh
+++ b/scripts/prepare_workload.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 #cut the workload for our experiments
-curl -L -o - http://www.cs.huji.ac.il/labs/parallel/workload/l_metacentrum2/METACENTRUM-2013-3.swf.gz | gunzip > workload/METACENTRUM-2013-3.swf
+curl -L -o - http://www.cs.huji.ac.il/labs/parallel/workload/l_metacentrum2/METACENTRUM-2013-3.swf.gz -k | gunzip > workload/METACENTRUM-2013-3.swf
 jun1=44578794;
 nov30=60393593;
 nb_hour=15;