diff --git a/tox.ini b/tox.ini
index 572857bea3..2dab343e25 100644
--- a/tox.ini
+++ b/tox.ini
@@ -4,7 +4,7 @@ envlist = checkniceness,checksyntax,checkdeletions,checkbuild,checklang,checklin
 skipsdist = True
 
 [testenv]
-basepython = python2
+basepython=python2.7
 setenv =
    VIRTUAL_ENV={envdir}
 deps = -r{toxinidir}/test-requirements.txt