--- a/tg/configuration.py
+++ b/tg/configuration.py
@@ -287,6 +287,7 @@
 
         map = Mapper(directory=config['pylons.paths']['controllers'],
                     always_scan=config['debug'])
+        map.minimization = True
 
         # Setup a default route for the root of object dispatch
         map.connect('*url', controller='root', action='routes_placeholder')
