diff --git a/tox.ini b/tox.ini
index 7c7d8552..388d6f9b 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,7 +1,11 @@
 [tox]
-envlist = py24,py25,py26,py27
+envlist = py24,py25,py26,py27,pypy
 
 [testenv]
 commands=py.test --junitxml=junit-{envname}.xml
 deps = 
-    pytest
\ No newline at end of file
+    pytest
+
+[testenv:pypy]
+basepython=/usr/bin/pypy-c
+