diff --git a/src/bedtools/bedtools_bamtobed/config.vsh.yaml b/src/bedtools/bedtools_bamtobed/config.vsh.yaml
index 85c0ff86..dc23da6d 100644
--- a/src/bedtools/bedtools_bamtobed/config.vsh.yaml
+++ b/src/bedtools/bedtools_bamtobed/config.vsh.yaml
@@ -27,6 +27,7 @@ argument_groups:
     arguments:
       - name: --output
         alternatives: -o
+        required: true
         type: file
         direction: output
         description: Output BED file.
diff --git a/src/bedtools/bedtools_bamtobed/test.sh b/src/bedtools/bedtools_bamtobed/test.sh
index 6e456c14..6a47d240 100644
--- a/src/bedtools/bedtools_bamtobed/test.sh
+++ b/src/bedtools/bedtools_bamtobed/test.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 
 # exit on error
-set -e
+set -eo pipefail
 
 # directory of the bam file
 test_data="$meta_resources_dir/test_data"