diff --git a/openerp/models.py b/openerp/models.py
index 3f1bf70a54e..fcb90aa93cc 100644
--- a/openerp/models.py
+++ b/openerp/models.py
@@ -2559,8 +2559,8 @@ class BaseModel(object):
                                     cr.execute('ALTER TABLE "%s" RENAME COLUMN "%s" TO "%s"' % (self._table, k, newname))
                                     cr.execute('ALTER TABLE "%s" ADD COLUMN "%s" %s' % (self._table, k, get_pg_type(f)[1]))
                                     cr.execute("COMMENT ON COLUMN %s.\"%s\" IS %%s" % (self._table, k), (f.string,))
-                                    _schema.debug("Table '%s': column '%s' has changed type (DB=%s, def=%s), data moved to column %s !",
-                                        self._table, k, f_pg_type, f._type, newname)
+                                    _schema.warning("Table `%s`: column `%s` has changed type (DB=%s, def=%s), data moved to column `%s`",
+                                                    self._table, k, f_pg_type, f._type, newname)
 
                             # if the field is required and hasn't got a NOT NULL constraint
                             if f.required and f_pg_notnull == 0: