diff --git a/tox.ini b/tox.ini
index 72f6ad9..03a6600 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,10 @@
 [tox]
 # Environment changes have to be manually synced with '.travis.yml'.
+# py35: Blender 2.79b release
+# py36: Blender Cloud
+# py37: Blender 2.80
 envlist = py35,py36,py37
+skipsdist = True
 
 [pytest]
 ;addopts = -v --cov pillarsdk --cov-report term-missing