--- a/cubicweb/skeleton/tox.ini.tmpl	Fri May 10 16:04:37 2019 +0200
+++ b/cubicweb/skeleton/tox.ini.tmpl	Wed Apr 17 15:06:57 2019 +0200
@@ -1,5 +1,5 @@
 [tox]
-envlist = py27,py3,flake8
+envlist = py27,py3,flake8,check-manifest
 
 [testenv]
 deps =
@@ -14,5 +14,12 @@
   flake8
 commands = flake8
 
+[testenv:check-manifest]
+skip_install = true
+deps =
+  check-manifest
+commands =
+  {envpython} -m check_manifest {toxinidir}
+
 [flake8]
 exclude = cubicweb_%(cubename)s/migration/*,test/data/*,.tox/*