diff --git a/tools/generate-tempest-plugins-list.sh b/tools/generate-tempest-plugins-list.sh
index ecff508..e6aad86 100755
--- a/tools/generate-tempest-plugins-list.sh
+++ b/tools/generate-tempest-plugins-list.sh
@@ -1,4 +1,4 @@
-#!/bin/bash -ex
+#!/usr/bin/env bash
 
 # Copyright 2016 Hewlett Packard Enterprise Development Company, L.P.
 #
@@ -38,6 +38,8 @@
 # current working directory, it will be prepended or appended to
 # the generated reStructuredText plugins table respectively.
 
+set -ex
+
 (
 declare -A plugins
 
diff --git a/tools/with_venv.sh b/tools/with_venv.sh
index 165c883..408b5f1 100755
--- a/tools/with_venv.sh
+++ b/tools/with_venv.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 TOOLS_PATH=${TOOLS_PATH:-$(dirname $0)/../}
 VENV_PATH=${VENV_PATH:-${TOOLS_PATH}}
 VENV_DIR=${VENV_DIR:-/.venv}