diff --git a/tox.ini b/tox.ini
index 5069c6c..45587bb 100644
--- a/tox.ini
+++ b/tox.ini
@@ -21,11 +21,11 @@ commands = {posargs}
 [testenv:cover]
 setenv =
     PYTHON=coverage run --source oslo_concurrency --parallel-mode
-  commands =
-    stestr run {posargs}
-    coverage combine
-    coverage html -d cover
-    coverage xml -o cover/coverage.xml
+commands =
+  stestr run {posargs}
+  coverage combine
+  coverage html -d cover
+  coverage xml -o cover/coverage.xml
 
 [testenv:docs]
 allowlist_externals = rm