diff --git a/jinja2-debug.py b/jinja2-debug.py
index c9c482f10..80bbc628a 100755
--- a/jinja2-debug.py
+++ b/jinja2-debug.py
@@ -14,7 +14,10 @@
 from werkzeug import script
 
 env = jinja2.Environment(extensions=['jinja2.ext.i18n', 'jinja2.ext.do',
-                                     'jinja2.ext.loopcontrols'])
+                                     'jinja2.ext.loopcontrols',
+                                     'jinja2.ext.with_',
+                                     'jinja2.ext.autoescape'],
+                         autoescape=True)
 
 def shell_init_func():
     def _compile(x):