diff --git a/tox.ini b/tox.ini
index 406504f..cfcc5ac 100644
--- a/tox.ini
+++ b/tox.ini
@@ -72,8 +72,8 @@ commands =
 
 
 [testenv:check-self]
+deps = .
 commands =
-    pip install -e .
     pydoclint --config=pyproject.toml .