diff --git a/app/controllers/deliverables_controller.rb b/app/controllers/deliverables_controller.rb
index 4656082..c8001e0 100644
--- a/app/controllers/deliverables_controller.rb
+++ b/app/controllers/deliverables_controller.rb
@@ -7,7 +7,8 @@ class DeliverablesController < InheritedResources::Base
   before_filter :authorize
 
   def create
-    @deliverable = FixedDeliverable.new(params[:deliverable])
+    @deliverable = begin_of_association_chain.deliverables.build(params[:deliverable])
+    @deliverable.type = 'FixedDeliverable'
     create! { contract_url(@project, @contract) }
   end
 
diff --git a/test/integration/deliverables_new_test.rb b/test/integration/deliverables_new_test.rb
index e89a0aa..c4ad50a 100644
--- a/test/integration/deliverables_new_test.rb
+++ b/test/integration/deliverables_new_test.rb
@@ -38,6 +38,7 @@ class DeliverablesNewTest < ActionController::IntegrationTest
 
     @deliverable = Deliverable.last
     assert_equal "A New Deliverable", @deliverable.title
+    assert_equal @contract, @deliverable.contract
     assert_equal "FixedDeliverable", @deliverable.type
     assert_equal '2010-01-01', @deliverable.start_date.to_s
     assert_equal '2010-12-31', @deliverable.end_date.to_s