diff --git a/clevercloud/scripts/deduplicate_cron.sh b/clevercloud/scripts/deduplicate_cron.sh
index e1d43e7ef..193db6b0d 100755
--- a/clevercloud/scripts/deduplicate_cron.sh
+++ b/clevercloud/scripts/deduplicate_cron.sh
@@ -1,3 +1,5 @@
+#! /bin/bash -l
+
 if [[ "$INSTANCE_NUMBER" != "0" ]]; then
   echo "Instance number is ${INSTANCE_NUMBER}. Stop here."
   exit 0