diff --git a/mail_multi_website/__manifest__.py b/mail_multi_website/__manifest__.py
index a91f12b..b447932 100644
--- a/mail_multi_website/__manifest__.py
+++ b/mail_multi_website/__manifest__.py
@@ -36,7 +36,7 @@
     "uninstall_hook": "uninstall_hook",
 
     "auto_install": False,
-    "installable": True,
+    "installable": False,
 
     # "demo_title": "Email Addresses per Website",
     # "demo_addons": [