diff --git a/tox.ini b/tox.ini
index 134636b..5c85c60 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py27,py3,flake8
+envlist = py27,py3,flake8,pyflakes
 toxworkdir={homedir}/.tox
 
 [testenv]
@@ -13,6 +13,12 @@
 commands =
     flake8 setup.py
 
+[testenv:pyflakes]
+basepython = python3
+deps = pyflakes
+commands =
+    pyflakes osmclient
+
 [testenv:build]
 basepython = python
 deps = stdeb