diff --git a/cmd/downloader/recompress.sh b/cmd/downloader/recompress.sh
index c749f4c9e..c4967cee7 100755
--- a/cmd/downloader/recompress.sh
+++ b/cmd/downloader/recompress.sh
@@ -1,4 +1,5 @@
-
+#!/bin/bash
+set -e
 
 dir=$1
 files=$(ls $dir/snapshots | grep -v tor | grep seg |  sort -n -t$'-' -k1)