diff --git a/tox.ini b/tox.ini
index 6489c01..aa8a2da 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,10 +1,11 @@
 [tox]
 minversion = 1.8
 envlist =
-    py{36,37}-unit
-    py{36,37}-lint
     format-check
+    lint
+    py{36,37}
     doc
+skip_missing_interpreters = true
 
 [gh-actions]
 python =
@@ -14,13 +15,16 @@ python =
 [testenv]
 passenv = *
 commands =
-    unit: py.test --runslow -vv {posargs}
-    lint: flake8
+    py.test --runslow -vv {posargs}
 setenv =
     COVERAGE_FILE={toxworkdir}/.coverage
 extras =
     test
 
+[testenv:lint]
+commands =
+    python -m flake8
+
 [testenv:format]
 commands =
     python -m black {toxinidir}