diff --git a/tox.ini b/tox.ini
index 905bc258d8c2..4a353e12ce15 100644
--- a/tox.ini
+++ b/tox.ini
@@ -37,6 +37,12 @@ commands =
   find . -type f -name "*.pyc" -delete
   bash tools/pretty_tox3.sh '{posargs}'
 
+[testenv:py35]
+setenv = {[testenv]setenv}
+commands =
+  find . -type f -name "*.pyc" -delete
+  bash tools/pretty_tox3.sh '{posargs}'
+
 [testenv:functional]
 usedevelop = True
 setenv = VIRTUAL_ENV={envdir}