diff --git a/lib/jsonapi/routing_ext.rb b/lib/jsonapi/routing_ext.rb
index 34e9d6ff7..16327d41b 100644
--- a/lib/jsonapi/routing_ext.rb
+++ b/lib/jsonapi/routing_ext.rb
@@ -255,8 +255,12 @@ def jsonapi_resource_scope(resource, resource_type) #:nodoc:
         private
 
         def resource_type_with_module_prefix(resource = nil)
-          resource_name = resource || @scope[:jsonapi_resource]
-          [@scope[:module], resource_name].compact.collect(&:to_s).join('/')
+          if (resource && resource[0] == '/')
+            resource
+          else
+            resource_name = resource || @scope[:jsonapi_resource]
+            [@scope[:module], resource_name].compact.collect(&:to_s).join('/')
+          end
         end
       end
     end