diff --git a/tox.ini b/tox.ini
index d486a6aa6..8fea6d20f 100644
--- a/tox.ini
+++ b/tox.ini
@@ -18,8 +18,8 @@ commands =
 
 [testenv:releasenotes]
 deps =
-  -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
-  -r{toxinidir}/doc/requirements.txt
+    -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
+    -r{toxinidir}/doc/requirements.txt
 commands = sphinx-build -a -E -W -d releasenotes/build/doctrees -b html releasenotes/source releasenotes/build/html
 
 [testenv:pep8]
@@ -37,18 +37,18 @@ commands =
 setenv = {[testenv]setenv}
          PYTHON=coverage run --source ironicclient --omit='*tests*' --parallel-mode
 commands =
-  coverage erase
-  stestr run {posargs}
-  coverage combine
-  coverage report --omit='*tests*'
-  coverage html -d ./cover --omit='*tests*'
+    coverage erase
+    stestr run {posargs}
+    coverage combine
+    coverage report --omit='*tests*'
+    coverage html -d ./cover --omit='*tests*'
 
 [testenv:venv]
 deps =
-  -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
-  -r{toxinidir}/test-requirements.txt
-  -r{toxinidir}/requirements.txt
-  -r{toxinidir}/doc/requirements.txt
+    -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
+    -r{toxinidir}/test-requirements.txt
+    -r{toxinidir}/requirements.txt
+    -r{toxinidir}/doc/requirements.txt
 commands = {posargs}
 
 [testenv:functionalpy3]
@@ -59,17 +59,17 @@ setenv = TESTS_DIR=./ironicclient/tests/functional
 
 [testenv:docs]
 deps =
-  -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
-  -r{toxinidir}/doc/requirements.txt
+    -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
+    -r{toxinidir}/doc/requirements.txt
 commands =
-  sphinx-build -W -b html doc/source doc/build/html
+    sphinx-build -W -b html doc/source doc/build/html
 
 [testenv:pdf-docs]
 allowlist_externals = make
 deps = {[testenv:docs]deps}
 commands =
-  sphinx-build -W -b latex doc/source doc/build/pdf
-  make -C doc/build/pdf
+    sphinx-build -W -b latex doc/source doc/build/pdf
+    make -C doc/build/pdf
 
 [flake8]
 ignore = W503