--- a/src/pyams_content/shared/common/zmi/summary.py	Mon Oct 10 15:24:45 2016 +0200
+++ b/src/pyams_content/shared/common/zmi/summary.py	Tue Oct 11 16:00:27 2016 +0200
@@ -61,7 +61,7 @@
     @property
     def back_url(self):
         tool = get_parent(self.context, ISharedTool)
-        return absolute_url(tool, self.request, 'admin.html')
+        return absolute_url(tool, self.request, 'admin')
 
 
 @adapter_config(name='dublincore-summary',