diff --git a/doc/sphinx/arm/ctrl-channel.rst b/doc/sphinx/arm/ctrl-channel.rst
index 4c609704b4aca8413bc8d7f01b8cb26867256a81..5241a827976ede864c88f2719db619ec3ba8eb1f 100644
--- a/doc/sphinx/arm/ctrl-channel.rst
+++ b/doc/sphinx/arm/ctrl-channel.rst
@@ -549,7 +549,7 @@ the DHCPv4 or DHCPv6 server (:ref:`cb-sharing` explains the server tag concept)
 .. _command-config-backend-pull:
 
 The config-backend-pull Command:
---------------------------~~~~~~
+--------------------------------
 
 The ``config-backend-pull`` command triggers the polling of Config Backends
 (which should be configured for this command to do something)