diff --git a/lib/active_model_serializers.rb b/lib/active_model_serializers.rb
index c13e14a2..00cdec54 100644
--- a/lib/active_model_serializers.rb
+++ b/lib/active_model_serializers.rb
@@ -3,6 +3,17 @@ require "active_support/core_ext/string/inflections"
 require "active_model"
 require "active_model/serializer"
 
+if defined?(Rails)
+  module ActiveModel
+    class Railtie < Rails::Railtie
+      generators do |app|
+        Rails::Generators.configure!(app.config.generators)
+        require "generators/resource_override"
+      end
+    end
+  end
+end
+
 module ActiveModel::SerializerSupport
   extend ActiveSupport::Concern
 
diff --git a/lib/generators/resource_override.rb b/lib/generators/resource_override.rb
new file mode 100644
index 00000000..1b48a12e
--- /dev/null
+++ b/lib/generators/resource_override.rb
@@ -0,0 +1,13 @@
+require "rails/generators"
+require "rails/generators/rails/resource/resource_generator"
+
+module Rails
+  module Generators
+    ResourceGenerator.class_eval do
+      def add_serializer
+        invoke "serializer"
+      end
+    end
+  end
+end
+
diff --git a/lib/generators/serializer/serializer_generator.rb b/lib/generators/serializer/serializer_generator.rb
index 6ea4e500..8192cecb 100644
--- a/lib/generators/serializer/serializer_generator.rb
+++ b/lib/generators/serializer/serializer_generator.rb
@@ -30,7 +30,7 @@ module Rails
         # Only works on 3.2
         # elsif (n = Rails::Generators.namespace) && n.const_defined?(:ApplicationSerializer)
         #   "ApplicationSerializer"
-        elsif Object.const_defined?(:ApplicationSerializer)
+        elsif defined?(:ApplicationSerializer)
           "ApplicationSerializer"
         else
           "ActiveModel::Serializer"