diff --git a/ansible/roles/neutron/templates/l3_agent.ini.j2 b/ansible/roles/neutron/templates/l3_agent.ini.j2
index 78c4b39c84e11a3a2c78593feeaf4322f6c472f6..1bb7234ee2759b37b45192c10b20b5e5e5f6f2df 100644
--- a/ansible/roles/neutron/templates/l3_agent.ini.j2
+++ b/ansible/roles/neutron/templates/l3_agent.ini.j2
@@ -1,3 +1,4 @@
 # l3_agent.ini
 [DEFAULT]
 agent_mode = legacy
+external_network_bridge =