diff --git a/openerp/osv/expression.py b/openerp/osv/expression.py
index cb8cfea583f..ff2528db73d 100644
--- a/openerp/osv/expression.py
+++ b/openerp/osv/expression.py
@@ -450,7 +450,7 @@ class expression(object):
                     # field could not be found in model columns, it's probably invalid, unless
                     # it's one of the _log_access special fields
                     # TODO: make these fields explicitly available in self.columns instead!
-                    if field_path[0] not in MAGIC_COLUMNS:
+                    if (field_path[0] not in MAGIC_COLUMNS) and (left not in MAGIC_COLUMNS):
                         raise ValueError("Invalid field %r in domain expression %r" % (left, exp))
                 continue
 
diff --git a/openerp/osv/orm.py b/openerp/osv/orm.py
index 0dd7d487bba..37dd1010d2f 100644
--- a/openerp/osv/orm.py
+++ b/openerp/osv/orm.py
@@ -2556,7 +2556,8 @@ LOG_ACCESS_COLUMNS = {
     'write_date': 'TIMESTAMP'
 }
 # special columns automatically created by the ORM
-MAGIC_COLUMNS =  ['id'] + LOG_ACCESS_COLUMNS.keys()
+MAGIC_COLUMNS =  ['id'] + LOG_ACCESS_COLUMNS.keys() + \
+                 ['internal.create_uid', 'internal.date_access'] # for osv_memory only
 
 class orm(orm_template):
     _sql_constraints = []