diff --git a/doc/source/usage.rst b/doc/source/usage.rst
index 6a79dbc7..88ee1ad5 100644
--- a/doc/source/usage.rst
+++ b/doc/source/usage.rst
@@ -1,10 +1,10 @@
-=========
+=======
  Usage
-=========
+=======
 
 To use oslo.utils in a project, import the individual module you
 need. For example::
 
-	from oslo_utils import strutils
+    from oslo_utils import strutils
 
     slug = strutils.to_slug('input value')