1 files changed, 2 insertions, 1 deletions

diff --git a/tox.ini b/tox.ini
index b88e6dc7..a1a68273 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,10 +1,11 @@
 [tox]
-envlist = py26,py27,pep8
+envlist = py26,py27,py34,pep8
 
 [testenv]
 deps = -U
        -r{toxinidir}/tools/pip-requires
        -r{toxinidir}/tools/test-requires
+usedevelop = True
 commands =
   python ryu/tests/run_tests.py '{posargs}'