diff --git a/doc/arch-design/setup.cfg b/doc/arch-design/setup.cfg
index 88e587368c..12d08a3cdf 100644
--- a/doc/arch-design/setup.cfg
+++ b/doc/arch-design/setup.cfg
@@ -5,12 +5,12 @@ author = OpenStack
 author-email = openstack-dev@lists.openstack.org
 home-page = https://docs.openstack.org/
 classifier =
-Environment :: OpenStack
-Intended Audience :: Information Technology
-Intended Audience :: Cloud Architects
-License :: OSI Approved :: Apache Software License
-Operating System :: POSIX :: Linux
-Topic :: Documentation
+    Environment :: OpenStack
+    Intended Audience :: Information Technology
+    Intended Audience :: Cloud Architects
+    License :: OSI Approved :: Apache Software License
+    Operating System :: POSIX :: Linux
+    Topic :: Documentation
 
 [global]
 setup-hooks =
diff --git a/doc/doc-contrib-guide/setup.cfg b/doc/doc-contrib-guide/setup.cfg
index df9ef63f9c..b0c58b366f 100644
--- a/doc/doc-contrib-guide/setup.cfg
+++ b/doc/doc-contrib-guide/setup.cfg
@@ -5,12 +5,12 @@ author = OpenStack
 author-email = openstack-dev@lists.openstack.org
 home-page = https://docs.openstack.org/
 classifier =
-Environment :: OpenStack
-Intended Audience :: Information Technology
-Intended Audience :: Documentation Contributors
-License :: OSI Approved :: Apache Software License
-Operating System :: POSIX :: Linux
-Topic :: Documentation
+    Environment :: OpenStack
+    Intended Audience :: Information Technology
+    Intended Audience :: Documentation Contributors
+    License :: OSI Approved :: Apache Software License
+    Operating System :: POSIX :: Linux
+    Topic :: Documentation
 
 [global]
 setup-hooks =
diff --git a/doc/glossary/setup.cfg b/doc/glossary/setup.cfg
index 1d104840e1..519c475ffa 100644
--- a/doc/glossary/setup.cfg
+++ b/doc/glossary/setup.cfg
@@ -5,12 +5,12 @@ author = OpenStack
 author-email = openstack-dev@lists.openstack.org
 home-page = https://docs.openstack.org/
 classifier =
-Environment :: OpenStack
-Intended Audience :: Information Technology
-Intended Audience :: Documentation Contributors
-License :: OSI Approved :: Apache Software License
-Operating System :: POSIX :: Linux
-Topic :: Documentation
+    Environment :: OpenStack
+    Intended Audience :: Information Technology
+    Intended Audience :: Documentation Contributors
+    License :: OSI Approved :: Apache Software License
+    Operating System :: POSIX :: Linux
+    Topic :: Documentation
 
 [global]
 setup-hooks =
diff --git a/doc/ha-guide-draft/setup.cfg b/doc/ha-guide-draft/setup.cfg
index acaad73d89..d8b4586410 100644
--- a/doc/ha-guide-draft/setup.cfg
+++ b/doc/ha-guide-draft/setup.cfg
@@ -5,12 +5,12 @@ author = OpenStack
 author-email = openstack-dev@lists.openstack.org
 home-page = https://docs.openstack.org/
 classifier =
-Environment :: OpenStack
-Intended Audience :: Information Technology
-Intended Audience :: System Administrators
-License :: OSI Approved :: Apache Software License
-Operating System :: POSIX :: Linux
-Topic :: Documentation
+    Environment :: OpenStack
+    Intended Audience :: Information Technology
+    Intended Audience :: System Administrators
+    License :: OSI Approved :: Apache Software License
+    Operating System :: POSIX :: Linux
+    Topic :: Documentation
 
 [global]
 setup-hooks =
diff --git a/doc/ha-guide/setup.cfg b/doc/ha-guide/setup.cfg
index acaad73d89..d8b4586410 100644
--- a/doc/ha-guide/setup.cfg
+++ b/doc/ha-guide/setup.cfg
@@ -5,12 +5,12 @@ author = OpenStack
 author-email = openstack-dev@lists.openstack.org
 home-page = https://docs.openstack.org/
 classifier =
-Environment :: OpenStack
-Intended Audience :: Information Technology
-Intended Audience :: System Administrators
-License :: OSI Approved :: Apache Software License
-Operating System :: POSIX :: Linux
-Topic :: Documentation
+    Environment :: OpenStack
+    Intended Audience :: Information Technology
+    Intended Audience :: System Administrators
+    License :: OSI Approved :: Apache Software License
+    Operating System :: POSIX :: Linux
+    Topic :: Documentation
 
 [global]
 setup-hooks =
diff --git a/doc/image-guide/setup.cfg b/doc/image-guide/setup.cfg
index 66ba66e40d..c9ed619d5c 100644
--- a/doc/image-guide/setup.cfg
+++ b/doc/image-guide/setup.cfg
@@ -5,12 +5,12 @@ author = OpenStack
 author-email = openstack-dev@lists.openstack.org
 home-page = https://docs.openstack.org/
 classifier =
-Environment :: OpenStack
-Intended Audience :: Information Technology
-Intended Audience :: Cloud Architects
-License :: OSI Approved :: Apache Software License
-Operating System :: POSIX :: Linux
-Topic :: Documentation
+    Environment :: OpenStack
+    Intended Audience :: Information Technology
+    Intended Audience :: Cloud Architects
+    License :: OSI Approved :: Apache Software License
+    Operating System :: POSIX :: Linux
+    Topic :: Documentation
 
 [global]
 setup-hooks =
diff --git a/doc/install-guide/setup.cfg b/doc/install-guide/setup.cfg
index 5ebeec86f9..bd0940cf67 100644
--- a/doc/install-guide/setup.cfg
+++ b/doc/install-guide/setup.cfg
@@ -5,12 +5,12 @@ author = OpenStack
 author-email = openstack-dev@lists.openstack.org
 home-page = http://docs.openstack.org/
 classifier =
-Environment :: OpenStack
-Intended Audience :: Information Technology
-Intended Audience :: System Administrators
-License :: OSI Approved :: Apache Software License
-Operating System :: POSIX :: Linux
-Topic :: Documentation
+    Environment :: OpenStack
+    Intended Audience :: Information Technology
+    Intended Audience :: System Administrators
+    License :: OSI Approved :: Apache Software License
+    Operating System :: POSIX :: Linux
+    Topic :: Documentation
 
 [global]
 setup-hooks =