diff --git a/tox.ini b/tox.ini
index 4e9273e..7095101 100644
--- a/tox.ini
+++ b/tox.ini
@@ -13,7 +13,8 @@ changedir=testing
 passenv = USER USERNAME
 deps =
   pycmd
-  setuptools_scm # to avoid .eggs
+  # to avoid .eggs
+  setuptools_scm
   pytest26: pytest~=2.6.1
   pytest27: pytest~=2.7.2
   pytest28: pytest~=2.8.7