diff --git a/lib/puppet/type/neutron_network.rb b/lib/puppet/type/neutron_network.rb
index d151e5c6c..f0d8bf560 100644
--- a/lib/puppet/type/neutron_network.rb
+++ b/lib/puppet/type/neutron_network.rb
@@ -40,7 +40,7 @@
 
   newproperty(:provider_network_type) do
     desc 'The physical mechanism by which the virtual network is realized.'
-    newvalues(:flat, :vlan, :local, :gre)
+    newvalues(:flat, :vlan, :local, :gre, :l3_ext)
   end
 
   newproperty(:provider_physical_network) do