diff --git a/openerp/fields.py b/openerp/fields.py
index 10c378bfcaa..b393348821a 100644
--- a/openerp/fields.py
+++ b/openerp/fields.py
@@ -336,8 +336,6 @@ class Field(object):
         # determine self.default and cls._defaults in a consistent way
         self._determine_default(cls, name)
 
-        self.reset()
-
     def _determine_default(self, cls, name):
         """ Retrieve the default value for `self` in the hierarchy of `cls`, and
             determine `self.default` and `cls._defaults` accordingly.
diff --git a/openerp/models.py b/openerp/models.py
index 2e36a7527e9..9561d3dde40 100644
--- a/openerp/models.py
+++ b/openerp/models.py
@@ -2929,13 +2929,8 @@ class BaseModel(object):
 
     @api.model
     def _prepare_setup(self):
-        """ Prepare the setup of the model and its fields. """
+        """ Prepare the setup of the model. """
         type(self)._setup_done = False
-        for name, field in self._fields.items():
-            if field.inherited:
-                del self._fields[name]
-            else:
-                field.reset()
 
     @api.model
     def _setup_base(self, partial):
@@ -2949,12 +2944,21 @@ class BaseModel(object):
         for parent in cls._inherits:
             self.env[parent]._setup_base(partial)
 
+        # remove inherited fields from cls._fields
+        for name, field in cls._fields.items():
+            if field.inherited:
+                del cls._fields[name]
+
         # retrieve custom fields
         cls._init_manual_fields(self._cr, partial)
 
         # retrieve inherited fields
         cls._init_inherited_fields()
 
+        # prepare the setup of fields
+        for field in cls._fields.itervalues():
+            field.reset()
+
         cls._setup_done = True
 
     @api.model