diff --git a/browser/task.py b/browser/task.py
index 54dffb1..f12f209 100644
--- a/browser/task.py
+++ b/browser/task.py
@@ -28,7 +28,7 @@ from zope.security.proxy import removeSecurityProxy
 
 from loops.interfaces import ITask
 
-class Details:
+class Details(object):
 
     def modified(self):
         """ get date/time of last modification
diff --git a/configure.zcml b/configure.zcml
index b81e93f..5eb5965 100644
--- a/configure.zcml
+++ b/configure.zcml
@@ -11,21 +11,21 @@
 
   <interface
       interface=".interfaces.ITask"
-      type="zope.app.content.interfaces.IContentType"
-      />
+      type="zope.app.content.interfaces.IContentType" />
 
- <content class=".task.Task">
+  <content class=".task.Task">
 
     <implements interface="zope.app.container.interfaces.IContentContainer" />
 
     <implements
        interface="zope.app.annotation.interfaces.IAttributeAnnotatable" />
 
-    <implements interface="zope.app.workflow.interfaces.IProcessInstanceContainerAdaptable" />
+    <implements
+        interface="zope.app.workflow.interfaces.IProcessInstanceContainerAdaptable" />
 
     <factory
         id="loops.Task"
-        description="Task object " />
+        description="Task object" />
 
     <!-- <require
         permission="zope.View"
@@ -33,11 +33,11 @@
 
     <require
         permission="zope.View"
-        interface=".interfaces.ITask"/>
+        interface=".interfaces.ITask" />
 
     <require
         permission="zope.ManageContent"
-        set_schema=".interfaces.ITask"/>
+        set_schema=".interfaces.ITask" />
 
   </content>
 
diff --git a/task.py b/task.py
index 0986cf2..00f24ed 100644
--- a/task.py
+++ b/task.py
@@ -26,6 +26,7 @@ from zope.interface import implements
 from zope.app.container.ordered import OrderedContainer
 from zope.app.copypastemove import ObjectCopier
 from zope.app import zapi
+from zope.schema.fieldproperty import FieldProperty
 
 from relation import Relation, Relations
 from resource import Resource
@@ -51,8 +52,7 @@ class Task(OrderedContainer):
 
     title = u''
     qualifier = u''
-    priority = 0
-
+    priority = FieldProperty(ITask['priority'])
 
     def __init__(self):
         OrderedContainer.__init__(self)