diff --git a/tox.ini b/tox.ini
index be04e0a0a..69c9d0f52 100644
--- a/tox.ini
+++ b/tox.ini
@@ -107,6 +107,7 @@ commands= py.test -rfsxX {posargs}
 changedir=doc/en
 deps=sphinx
      PyYAML
+whitelist_externals=rm     
 commands=
     rm -rf /tmp/doc-exec*
     #pip install pytest==2.3.4