diff --git a/email_template_qweb/__openerp__.py b/email_template_qweb/__openerp__.py
index 7fe4e9db..240eb0ff 100644
--- a/email_template_qweb/__openerp__.py
+++ b/email_template_qweb/__openerp__.py
@@ -18,4 +18,5 @@
     "data": [
         "views/mail_template.xml",
     ],
+    'installable': False,
 }
diff --git a/mail_as_letter/__openerp__.py b/mail_as_letter/__openerp__.py
index 28ce694a..376912ff 100644
--- a/mail_as_letter/__openerp__.py
+++ b/mail_as_letter/__openerp__.py
@@ -19,4 +19,5 @@
     ],
     'demo': [
     ],
+    'installable': False,
 }
diff --git a/mail_attach_existing_attachment/__openerp__.py b/mail_attach_existing_attachment/__openerp__.py
index 58f1642d..652c40ae 100644
--- a/mail_attach_existing_attachment/__openerp__.py
+++ b/mail_attach_existing_attachment/__openerp__.py
@@ -40,5 +40,5 @@
     'data': [
         'wizard/mail_compose_message_view.xml',
     ],
-    'installable': True,
+    'installable': False,
 }
diff --git a/mail_optional_autofollow/__openerp__.py b/mail_optional_autofollow/__openerp__.py
index abd3f76b..e2f7769a 100644
--- a/mail_optional_autofollow/__openerp__.py
+++ b/mail_optional_autofollow/__openerp__.py
@@ -18,4 +18,5 @@
     'data': [
         'wizard/mail_compose_message_view.xml',
     ],
+    'installable': False,
 }
diff --git a/mail_tracking/__openerp__.py b/mail_tracking/__openerp__.py
index accf9ce0..68ae3b9a 100644
--- a/mail_tracking/__openerp__.py
+++ b/mail_tracking/__openerp__.py
@@ -12,7 +12,7 @@
               "Odoo Community Association (OCA)",
     "license": "AGPL-3",
     "application": False,
-    "installable": True,
+    'installable': False,
     "depends": [
         "decimal_precision",
         "mail",
diff --git a/mail_tracking_mailgun/__openerp__.py b/mail_tracking_mailgun/__openerp__.py
index 3e91cb62..e607daac 100644
--- a/mail_tracking_mailgun/__openerp__.py
+++ b/mail_tracking_mailgun/__openerp__.py
@@ -11,7 +11,7 @@
               "Odoo Community Association (OCA)",
     "license": "AGPL-3",
     "application": False,
-    "installable": True,
+    'installable': False,
     "depends": [
         "mail_tracking",
     ],