diff --git a/lib/fog/brightbox/models/compute/firewall_policy.rb b/lib/fog/brightbox/models/compute/firewall_policy.rb
index 1910ca5e1..eed113616 100644
--- a/lib/fog/brightbox/models/compute/firewall_policy.rb
+++ b/lib/fog/brightbox/models/compute/firewall_policy.rb
@@ -32,10 +32,11 @@ module Fog
         end
 
         def apply_to(server_group_id)
+          requires :identity
           options = {
             :server_group => server_group_id
           }
-          data = connection.apply_to_firewall_policy(options)
+          data = connection.apply_to_firewall_policy(identity, options)
           merge_attributes(data)
           true
         end