diff --git a/continuousintegration/docker/ctafrontend/cc7/opt/run/bin/init.sh b/continuousintegration/docker/ctafrontend/cc7/opt/run/bin/init.sh
index c2448aba64149bb93269168604cc461f4940277c..b184d4b99b054fb48aba942b951c5bd5a076c4da 100755
--- a/continuousintegration/docker/ctafrontend/cc7/opt/run/bin/init.sh
+++ b/continuousintegration/docker/ctafrontend/cc7/opt/run/bin/init.sh
@@ -29,7 +29,7 @@ if [ "$KEEP_OBJECTSTORE" == "0" ]; then
   else
     if [[ $(rados -p $OBJECTSTOREPOOL --id $OBJECTSTOREID --namespace $OBJECTSTORENAMESPACE ls | wc -l) -gt 0 ]]; then
       echo "Rados objectstore ${OBJECTSTOREURL} is not empty: deleting content"
-      rados -p $OBJECTSTOREPOOL --id $OBJECTSTOREID --namespace $OBJECTSTORENAMESPACE ls | xargs -itoto rados -p $OBJECTSTOREPOOL --id $OBJECTSTOREID --namespace $OBJECTSTORENAMESPACE rm toto
+      rados -p $OBJECTSTOREPOOL --id $OBJECTSTOREID --namespace $OBJECTSTORENAMESPACE ls | xargs -itoto -P 100 rados -p $OBJECTSTOREPOOL --id $OBJECTSTOREID --namespace $OBJECTSTORENAMESPACE rm toto
     fi
     cta-objectstore-initialize $OBJECTSTOREURL
     echo "Rados objectstore ${OBJECTSTOREURL} content:"