diff --git a/test-requirements.txt b/test-requirements.txt
index d494076..8a9ef55 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -10,6 +10,7 @@ python-subunit
 sphinx>=1.1.2
 oslosphinx
 oslotest>=1.1.0.0a1
+tempest-lib
 testrepository>=0.0.18
 testscenarios>=0.4
 testtools>=0.9.34
diff --git a/tools/pretty_tox.sh b/tools/pretty_tox.sh
new file mode 100644
index 0000000..dcab82c
--- /dev/null
+++ b/tools/pretty_tox.sh
@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+
+set -o pipefail
+
+TESTRARGS=$1
+python setup.py testr --slowest --testr-args="--subunit $TESTRARGS" | subunit-trace -f
\ No newline at end of file
diff --git a/tox.ini b/tox.ini
index 6e7f78f..301fd3b 100644
--- a/tox.ini
+++ b/tox.ini
@@ -10,7 +10,7 @@ setenv =
    VIRTUAL_ENV={envdir}
 deps = -r{toxinidir}/requirements.txt
        -r{toxinidir}/test-requirements.txt
-commands = python setup.py testr --slowest --testr-args='{posargs}'
+commands = bash tools/pretty_tox.sh '{posargs}'
 
 [testenv:pep8]
 commands = flake8