diff --git a/README.md b/README.md
index fd1bc9a..584b528 100644
--- a/README.md
+++ b/README.md
@@ -64,7 +64,7 @@ Grape::Formatter::ActiveModelSerializers.infer_serializers = false
 ```
 
 
-### Manually specifying a serializer
+### Manually specifying serializer options
 
 Serializers can be specified at a route level by with the serializer option. A serializer can be specified by passing the the serializer class or the serializer name. The following are equivalent:
 
@@ -81,6 +81,27 @@ get "/home", :serializer => :home
 ...
 ```
 
+You can also set a serializer at the namespace level. This serializer can/will be overriden if a serilizer is also specified on the route.
+
+```ruby
+namespace 'foo', :serializer => :bar do
+  get "/" do
+    # will use "bar" serializer
+  end
+
+  get "/home", :serializer => :home do
+    # will use "home" serializer
+  end
+end
+```
+
+Other standard options for `ActiveModel::Serializers` can be provided at either the namespace or route level with the same overriding behavior.
+
+```ruby
+get "/home", :root => 'world', :each_serializer => :fancy_home
+...
+```
+
 
 ### Example
 
diff --git a/lib/grape-active_model_serializers/formatter.rb b/lib/grape-active_model_serializers/formatter.rb
index 2f4ce79..cd86dda 100644
--- a/lib/grape-active_model_serializers/formatter.rb
+++ b/lib/grape-active_model_serializers/formatter.rb
@@ -6,14 +6,17 @@ module Grape
     module ActiveModelSerializers
       class << self
         attr_accessor :infer_serializers
-        attr_reader :env
         attr_reader :endpoint
 
         ActiveModelSerializers.infer_serializers = true
 
         def call(resource, env)
-          # @object = object
-          options = env['api.endpoint'].options[:route_options]
+          @endpoint = env["api.endpoint"]
+
+          namespace         = endpoint.settings[:namespace]
+          namespace_options = namespace ? namespace.options : {}
+          route_options     = endpoint.options[:route_options]
+          options           = namespace_options.merge(route_options)
 
           serializer = serializer(endpoint, resource, options)
 
@@ -24,14 +27,9 @@ module Grape
           end
         end
 
-        #   options = endpoint.options[:route_options][:serializer_options] || {}
-        #   serializer.new(object, options).to_json
-        # end
-
         private
 
         def serializer(endpoint, resource, options={})
-          
           serializer = options.delete(:serializer) ||
             (resource.respond_to?(:active_model_serializer) &&
              resource.active_model_serializer)
diff --git a/spec/grape_ams_spec.rb b/spec/grape_ams_spec.rb
index 7bc2c64..d7845fa 100644
--- a/spec/grape_ams_spec.rb
+++ b/spec/grape_ams_spec.rb
@@ -74,6 +74,17 @@ describe Grape::ActiveModelSerializers do
     end
   end
 
+  it "uses namespace options when provided" do
+    subject.namespace :admin, :serializer => UserSerializer do
+      get('/jeff') do
+        User.new(first_name: 'Jeff')
+      end
+    end
+
+    get "/admin/jeff"
+    last_response.body.should == "{\"user\":{\"first_name\":\"Jeff\",\"last_name\":null}}"
+  end
+
   # [User2Serializer, 'user2', :user2].each do |serializer|
   #   it "should render using serializer (#{serializer})" do
   #     subject.get("/home", serializer: serializer) do