diff --git a/neutron_fwaas/extensions/firewall.py b/neutron_fwaas/extensions/firewall.py
index 10f8f0d49..ca0c35c26 100644
--- a/neutron_fwaas/extensions/firewall.py
+++ b/neutron_fwaas/extensions/firewall.py
@@ -390,10 +390,6 @@ class Firewall(extensions.ExtensionDescriptor):
     def get_description(cls):
         return "Extension for Firewall service"
 
-    @classmethod
-    def get_namespace(cls):
-        return "http://wiki.openstack.org/Neutron/FWaaS/API_1.0"
-
     @classmethod
     def get_updated(cls):
         return "2013-02-25T10:00:00-00:00"
diff --git a/neutron_fwaas/extensions/firewallrouterinsertion.py b/neutron_fwaas/extensions/firewallrouterinsertion.py
index 7b4eaa83e..8c2a88600 100644
--- a/neutron_fwaas/extensions/firewallrouterinsertion.py
+++ b/neutron_fwaas/extensions/firewallrouterinsertion.py
@@ -65,11 +65,6 @@ class Firewallrouterinsertion(extensions.ExtensionDescriptor):
     def get_description(cls):
         return "Firewall Router insertion on specified set of routers"
 
-    @classmethod
-    def get_namespace(cls):
-        return ("http://docs.openstack.org/ext/neutron/fwaasrouterinsertion"
-            "/api/v1.0")
-
     @classmethod
     def get_updated(cls):
         return "2015-01-27T10:00:00-00:00"