diff --git a/lib/services/api/messages.rb b/lib/services/api/messages.rb
index ec692f3..2f44dfc 100644
--- a/lib/services/api/messages.rb
+++ b/lib/services/api/messages.rb
@@ -30,6 +30,7 @@ class ServiceOfferingRequest < JsonMessage
         optional :acls
         optional :active
         optional :timeout,     Integer
+        optional :provider,    String
       end
 
       class BrokeredServiceOfferingRequest < JsonMessage