diff --git a/devstack/plugin.sh b/devstack/plugin.sh
old mode 100644
new mode 100755
diff --git a/test-requirements.txt b/test-requirements.txt
new file mode 100644
index 0000000..42f6658
--- /dev/null
+++ b/test-requirements.txt
@@ -0,0 +1 @@
+bashate>=0.2 # Apache-2.0
diff --git a/tox.ini b/tox.ini
index 933acaf..fbfad68 100644
--- a/tox.ini
+++ b/tox.ini
@@ -6,8 +6,9 @@ envlist = bashate
 [testenv]
 usedevelop = False
 install_command = pip install {opts} {packages}
+deps =
+    -r{toxinidir}/test-requirements.txt
 
 [testenv:bashate]
-deps = bashate
 whitelist_externals = bash
-commands = bash -c "find devstack -iname '*.sh' -print0 | xargs -0 bashate -v"
+commands = bash -c "find devstack/* -print0 | xargs -0 bashate -v"