diff --git a/all/spark/execute-spark.sh b/all/spark/execute-spark.sh
index 03b6fb6..77d8048 100755
--- a/all/spark/execute-spark.sh
+++ b/all/spark/execute-spark.sh
@@ -1,46 +1,46 @@
 #!/bin/bash
 # author: gilles fourestey (EPFL)
 # based on http://serverfault.com/questions/776687/how-can-i-run-spark-on-a-cluster-using-slurm
 # debug flag
  set -x
 
 # This section will be run when started by sbatch
 if [ "x$1" == 'x' ]; then
     #
     script=$0
     # log files
     export sparkLogs=./sparklogs/
     export sparkTmp=./sparktmp/
     mkdir -p "$sparkLogs" "$sparkTmp"
     #
     export SPARK_WORKER_DIR=$sparkLogs
     export SPARK_LOCAL_DIRS=$sparkLogs
     export SPARK_MASTER_PORT=7077
     export SPARK_MASTER_WEBUI_PORT=8080
     export SPARK_WORKER_CORES=$SLURM_CPUS_PER_TASK
     #export SPARK_MEM=48G
     #export SPARK_DRIVER_MEMORY=60G
     #export SPARK_DAEMON_MEMORY=$(( $SLURM_MEM_PER_CPU * $SLURM_CPUS_PER_TASK / 2 ))m
     #export SPARK_DAEMON_MEMORY=8G
     #export SPARK_WORKER_MEMORY=48G
     #export SPARK_MEM=$SPARK_DAEMON_MEMORY
     #
     srun "$script" 'srunning'
     #
 # If run by srun, then decide by $SLURM_PROCID whether we are master or worker
 elif [ "$1" == 'srunning' ]; then
     if [ $SLURM_PROCID -eq 0 ]; then
-        export SPARK_MASTER_IP=$(hostname)
+        export SPARK_MASTER_HOST=$(hostname)
         MASTER_NODE=$(scontrol show hostname $SLURM_NODELIST | head -n 1)
 	#
-        echo "spark://$SPARK_MASTER_IP:$SPARK_MASTER_PORT" > "./${SLURM_JOBID}_spark_master"
+        echo "spark://$SPARK_MASTER_HOST:$SPARK_MASTER_PORT" > "./${SLURM_JOBID}_spark_master"
 	#
         "$SPARK_ROOT/bin/spark-class" org.apache.spark.deploy.master.Master \
-            --ip $SPARK_MASTER_IP                                           \
+            --ip $SPARK_MASTER_HOST                                           \
             --port $SPARK_MASTER_PORT                                       \
             --webui-port $SPARK_MASTER_WEBUI_PORT
     else
         MASTER_NODE=spark://$(scontrol show hostname $SLURM_NODELIST | head -n 1):7077
         "$SPARK_ROOT/bin/spark-class" org.apache.spark.deploy.worker.Worker $MASTER_NODE
     fi
 fi