diff --git a/init.rb b/init.rb
index 9486789..dd9f542 100644
--- a/init.rb
+++ b/init.rb
@@ -61,6 +61,8 @@ Dispatcher.to_prepare :redmine_contracts do
   
   require_dependency 'project'
   Project.send(:include, RedmineContracts::Patches::ProjectPatch)
+  require_dependency 'issue'
+  Issue.send(:include, RedmineContracts::Patches::IssuePatch)
 end
 
 require 'redmine_contracts/hooks/view_layouts_base_html_head_hook'
diff --git a/lib/redmine_contracts/patches/issue_patch.rb b/lib/redmine_contracts/patches/issue_patch.rb
new file mode 100644
index 0000000..617e21e
--- /dev/null
+++ b/lib/redmine_contracts/patches/issue_patch.rb
@@ -0,0 +1,21 @@
+module RedmineContracts
+  module Patches
+    module IssuePatch
+      def self.included(base)
+        base.extend(ClassMethods)
+
+        base.send(:include, InstanceMethods)
+        base.class_eval do
+          unloadable
+          belongs_to :deliverable
+        end
+      end
+
+      module ClassMethods
+      end
+
+      module InstanceMethods
+      end
+    end
+  end
+end
diff --git a/test/unit/lib/redmine_contracts/patches/issue_patch_test.rb b/test/unit/lib/redmine_contracts/patches/issue_patch_test.rb
new file mode 100644
index 0000000..9aafaac
--- /dev/null
+++ b/test/unit/lib/redmine_contracts/patches/issue_patch_test.rb
@@ -0,0 +1,9 @@
+require File.dirname(__FILE__) + '/../../../../test_helper'
+
+class RedmineContracts::Patches::IssueTest < ActionController::TestCase
+
+  context "Issue" do
+    subject { Issue.new }
+    should_belong_to :deliverable
+  end
+end