--- a/tox.ini	Fri Aug 26 14:31:25 2016 +0200
+++ b/tox.ini	Thu Sep 08 11:57:46 2016 +0200
@@ -1,5 +1,6 @@
 [tox]
 envlist =
+  check-manifest,
   py27-{cubicweb,dataimport,devtools,entities,etwist,ext,hooks,server,migractions,sobjects,web,wsgi},
   py34-{cubicweb,dataimport,devtools,entities,ext,hooks,server,migractions,sobjects,web,wsgi}
 
@@ -47,5 +48,12 @@
 commands =
   {envpython} -c 'import sphinx; sphinx.main()' -b html -d {envtmpdir}/doctrees .  {envtmpdir}/html
 
+[testenv:check-manifest]
+skip_install = true
+deps =
+  check-manifest
+commands =
+  check-manifest {toxinidir}
+
 [pytest]
 python_files = *test_*.py