diff --git a/install.py b/install.py
index 20a4484..64a49f1 100755
--- a/install.py
+++ b/install.py
@@ -105,6 +105,13 @@ if os.path.exists('__init__.py'):
                 new_apps = apps.strip() + ',\n"%s"\n' % name
                 local_settings = local_settings.replace(apps, new_apps)
                 local_settings_changed = True
+        if 'LOCAL_URLPATTERNS' not in local_settings:
+            local_settings += '''
+LOCAL_URLPATTERNS = [
+    [r'^(?P<id>[A-Z0-9].*)/source(?P<position>[\d\.]+)\.(?P<format>.*)$', 'p_for_power.views.source_frame'],
+]
+'''
+            local_settings_changed = True
     if local_settings_changed:
         with open(local_settings_py, 'w') as fd:
             fd.write(local_settings)