diff --git a/contract/__openerp__.py b/contract/__openerp__.py
index bc9a51cb..e7fb66f7 100644
--- a/contract/__openerp__.py
+++ b/contract/__openerp__.py
@@ -19,5 +19,5 @@
         'views/contract.xml',
         'views/account_invoice_view.xml',
     ],
-    'installable': True,
+    'installable': False,
 }
diff --git a/contract_show_invoice/__openerp__.py b/contract_show_invoice/__openerp__.py
index 141fde4b..f5fcefb8 100644
--- a/contract_show_invoice/__openerp__.py
+++ b/contract_show_invoice/__openerp__.py
@@ -16,5 +16,5 @@
     'data': [
         'views/contract_view.xml',
     ],
-    'installable': True,
+    'installable': False,
 }
diff --git a/contract_variable_quantity/__openerp__.py b/contract_variable_quantity/__openerp__.py
index faad6c56..d4fec294 100644
--- a/contract_variable_quantity/__openerp__.py
+++ b/contract_variable_quantity/__openerp__.py
@@ -17,5 +17,5 @@
         'security/ir.model.access.csv',
         'views/contract_view.xml',
     ],
-    'installable': True,
+    'installable': False,
 }