diff --git a/doc/source/specs/karbor-support-in-python-openstackclient.rst b/doc/source/specs/karbor-support-in-python-openstackclient.rst
index 980066e..7f8ce38 100644
--- a/doc/source/specs/karbor-support-in-python-openstackclient.rst
+++ b/doc/source/specs/karbor-support-in-python-openstackclient.rst
@@ -89,7 +89,7 @@ Python API
 None
 
 CLI (python-karborclient)
-------------------------
+-------------------------
 
 A new directory named osc will be created under /karborclient/osc
 for the ``OpenStackClient`` plugin and the commands mentioned above.