diff --git a/addons/google_base_account/__openerp__.py b/addons/google_base_account/__openerp__.py
index ed5700b3116..ec204f0f77c 100644
--- a/addons/google_base_account/__openerp__.py
+++ b/addons/google_base_account/__openerp__.py
@@ -36,6 +36,5 @@
     'demo_xml': [],
     'installable': True,
     'active': False,
-    'certificate': '',
 }
 # vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4:
diff --git a/addons/import_google/__openerp__.py b/addons/import_google/__openerp__.py
index a0a15756ec3..fe469c94504 100644
--- a/addons/import_google/__openerp__.py
+++ b/addons/import_google/__openerp__.py
@@ -42,6 +42,5 @@
     ],
     'installable': True,
     'active': False,
-    'certificate': '',
 }
 # vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4:
diff --git a/addons/l10n_hn/__openerp__.py b/addons/l10n_hn/__openerp__.py
index 31d9344cb65..b590e65af67 100644
--- a/addons/l10n_hn/__openerp__.py
+++ b/addons/l10n_hn/__openerp__.py
@@ -49,6 +49,5 @@
     ],
     'demo_xml': [],
     'installable': True,
-    'certificate': '', 
 }
 # vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4:
diff --git a/addons/portal/__openerp__.py b/addons/portal/__openerp__.py
index d76917fcf45..035ee45b4df 100644
--- a/addons/portal/__openerp__.py
+++ b/addons/portal/__openerp__.py
@@ -45,7 +45,6 @@ module 'share'.
         'wizard/share_wizard_view.xml',
     ],
     'installable': True,
-    'certificate' : '',
 }
 
 # vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4: