diff --git a/tox.ini b/tox.ini
index 72fb43826..a8e9a6f34 100644
--- a/tox.ini
+++ b/tox.ini
@@ -6,6 +6,8 @@ skipsdist = True
 
 [testenv]
 usedevelop = True
+# tox is silly... these need to be separated by a newline....
+whitelist_externals = find
 install_command = pip install -U {opts} {packages}
 setenv = VIRTUAL_ENV={envdir}