diff --git a/addons/project/project.py b/addons/project/project.py
index f89ce8391fc..877c45703b4 100644
--- a/addons/project/project.py
+++ b/addons/project/project.py
@@ -1302,13 +1302,13 @@ class account_analytic_account(osv.osv):
         return analytic_account_id
 
     def write(self, cr, uid, ids, vals, context=None):
-        name = vals.get('name')
+        vals_for_project = vals.copy()
         for account in self.browse(cr, uid, ids, context=context):
-            if not name:
-                vals['name'] = account.name
+            if not vals.get('name'):
+                vals_for_project['name'] = account.name
             if not vals.get('type'):
-                vals['type'] = account.type
-            self.project_create(cr, uid, account.id, vals, context=context)
+                vals_for_project['type'] = account.type
+            self.project_create(cr, uid, account.id, vals_for_project, context=context)
         return super(account_analytic_account, self).write(cr, uid, ids, vals, context=context)
 
     def unlink(self, cr, uid, ids, *args, **kwargs):
@@ -1425,3 +1425,4 @@ class project_category(osv.osv):
     _columns = {
         'name': fields.char('Name', size=64, required=True, translate=True),
     }
+# vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4: