diff --git a/mail_all/__manifest__.py b/mail_all/__manifest__.py
index 2ab4558..955c037 100644
--- a/mail_all/__manifest__.py
+++ b/mail_all/__manifest__.py
@@ -35,6 +35,6 @@
     "post_init_hook": None,
     "uninstall_hook": None,
 
-    'installable': True,
+    'installable': False,
     "auto_install": False,
 }
diff --git a/mail_archives/__manifest__.py b/mail_archives/__manifest__.py
index 0165f56..44ef4aa 100644
--- a/mail_archives/__manifest__.py
+++ b/mail_archives/__manifest__.py
@@ -22,5 +22,5 @@
     "qweb": [
         "static/src/xml/menu.xml",
     ],
-    'installable': True,
+    'installable': False,
 }
diff --git a/mail_multi_website/__manifest__.py b/mail_multi_website/__manifest__.py
index 2affcde..d839fde 100644
--- a/mail_multi_website/__manifest__.py
+++ b/mail_multi_website/__manifest__.py
@@ -38,7 +38,7 @@
     "uninstall_hook": "uninstall_hook",
 
     "auto_install": False,
-    "installable": True,
+    "installable": False,
 
     # "demo_title": "Email Addresses per Website",
     # "demo_addons": [
diff --git a/mail_private/__manifest__.py b/mail_private/__manifest__.py
index 9712286..56318da 100644
--- a/mail_private/__manifest__.py
+++ b/mail_private/__manifest__.py
@@ -37,7 +37,7 @@
     "uninstall_hook": None,
 
     "auto_install": False,
-    "installable": True,
+    "installable": False,
 
     # "demo_title": "{MODULE_NAME}",
     # "demo_addons": [
diff --git a/mail_sent/__manifest__.py b/mail_sent/__manifest__.py
index cbd2b48..f9d0854 100644
--- a/mail_sent/__manifest__.py
+++ b/mail_sent/__manifest__.py
@@ -22,5 +22,5 @@
     "qweb": [
         "static/src/xml/menu.xml",
     ],
-    'installable': True,
+    'installable': False,
 }
diff --git a/mail_to/__manifest__.py b/mail_to/__manifest__.py
index 18a2815..f3e490b 100644
--- a/mail_to/__manifest__.py
+++ b/mail_to/__manifest__.py
@@ -23,6 +23,6 @@
         'static/src/xml/recipient.xml',
     ],
     "demo": [],
-    "installable": True,
+    "installable": False,
     "auto_install": False,
 }