diff --git a/doc/source/install/controller-install-option2-obs.rst b/doc/source/install/controller-install-option2-obs.rst
index 81bdff2bb70..a4535d0a996 100644
--- a/doc/source/install/controller-install-option2-obs.rst
+++ b/doc/source/install/controller-install-option2-obs.rst
@@ -325,8 +325,7 @@ self-service virtual networks.
 * Edit the ``/etc/neutron/l3_agent.ini`` file and complete the following
   actions:
 
-  * In the ``[DEFAULT]`` section, configure the Linux bridge interface driver
-    and external network bridge:
+  * In the ``[DEFAULT]`` section, configure the Linux bridge interface driver:
 
     .. path /etc/neutron/l3_agent.ini
     .. code-block:: ini
diff --git a/doc/source/install/controller-install-option2-rdo.rst b/doc/source/install/controller-install-option2-rdo.rst
index d774f3b6756..d4550d3f432 100644
--- a/doc/source/install/controller-install-option2-rdo.rst
+++ b/doc/source/install/controller-install-option2-rdo.rst
@@ -323,8 +323,7 @@ self-service virtual networks.
 * Edit the ``/etc/neutron/l3_agent.ini`` file and complete the following
   actions:
 
-  * In the ``[DEFAULT]`` section, configure the Linux bridge interface driver
-    and external network bridge:
+  * In the ``[DEFAULT]`` section, configure the Linux bridge interface driver:
 
     .. path /etc/neutron/l3_agent.ini
     .. code-block:: ini
diff --git a/doc/source/install/controller-install-option2-ubuntu.rst b/doc/source/install/controller-install-option2-ubuntu.rst
index 834095540b9..da6a8c37c9f 100644
--- a/doc/source/install/controller-install-option2-ubuntu.rst
+++ b/doc/source/install/controller-install-option2-ubuntu.rst
@@ -324,8 +324,7 @@ self-service virtual networks.
 * Edit the ``/etc/neutron/l3_agent.ini`` file and complete the following
   actions:
 
-  * In the ``[DEFAULT]`` section, configure the Linux bridge interface driver
-    and external network bridge:
+  * In the ``[DEFAULT]`` section, configure the Linux bridge interface driver:
 
     .. path /etc/neutron/l3_agent.ini
     .. code-block:: ini