diff --git a/tox.ini b/tox.ini
index 803d15e3c..c6ea84271 100644
--- a/tox.ini
+++ b/tox.ini
@@ -15,3 +15,6 @@ commands = {posargs}
 [testenv:docs]
 commands = python setup.py build_sphinx
             {toxinidir}/tools/check_projects_yaml_alphabetized.sh
+
+[testenv:validate]
+commands = python tools/validate_tags.py