diff --git a/tox.ini b/tox.ini
index 683e137..14d379c 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py27,py34,py35,py36,style,isort-check
+envlist = py27,py34,py35,py36,style,isort-check,packaging
 
 [testenv]
 deps =
@@ -31,9 +31,15 @@ commands =
   isort -rc stix2 examples -df
   isort -rc stix2 examples -c
 
+[testenv:packaging]
+deps =
+  readme_renderer
+commands =
+  python setup.py check -r -s
+
 [travis]
 python =
   2.7: py27, style
   3.4: py34, style
   3.5: py35, style
-  3.6: py36, style
+  3.6: py36, style, packaging