diff --git a/tox.ini b/tox.ini
index f9c5efa..afefe62 100644
--- a/tox.ini
+++ b/tox.ini
@@ -11,13 +11,11 @@ envlist = py26, py27, py32, py33
 deps =
     -r{toxinidir}/requirements.txt
     -r{toxinidir}/test_requirements.txt
-whitelist_externals =
-    make
 commands =
     # run tests both with and without the C extensions (including Cython)
-    make build-ext-inplace
+    {envpython} setup.py --quiet build_ext --inplace
     nose2 --no-user-config tests
-    make clean-build-ext-inplace
+    {envpython} setup.py --quiet build_ext --inplace
     nose2 --no-user-config tests
 
 [testenv:py26]