diff --git a/debian/50imio_townstreet.py b/debian/50imio_townstreet.py
index 36a3b66..685801a 100644
--- a/debian/50imio_townstreet.py
+++ b/debian/50imio_townstreet.py
@@ -1,5 +1,3 @@
-# -*- coding: utf-8 -*-
-
-if 'combo_plugin_imio_townstreet' in INSTALLED_APPS:
+if 'combo_plugin_imio_townstreet' not in INSTALLED_APPS:
     INSTALLED_APPS += ('combo_plugin_imio_townstreet',)
     TENANT_APPS += ('combo_plugin_imio_townstreet',)