diff --git a/addons/report_webkit/webkit_report.py b/addons/report_webkit/webkit_report.py
index 7e828403437..c3753f5de3b 100644
--- a/addons/report_webkit/webkit_report.py
+++ b/addons/report_webkit/webkit_report.py
@@ -38,6 +38,7 @@ import time
 import logging
 
 from mako.template import Template
+from mako.lookup import TemplateLookup
 from mako import exceptions
 
 import netsvc
@@ -56,8 +57,8 @@ def mako_template(text):
 
     This template uses UTF-8 encoding
     """
-    # default_filters=['unicode', 'h'] can be used to set global filters
-    return Template(text, input_encoding='utf-8', output_encoding='utf-8')
+    tmp_lookup  = TemplateLookup() #we need it in order to allow inclusion and inheritance
+    return Template(text, input_encoding='utf-8', output_encoding='utf-8', lookup=tmp_lookup)
 
 
 class WebKitParser(report_sxw):