diff --git a/tryton/tryton/gui/window/view_form/model/group.py b/tryton/tryton/gui/window/view_form/model/group.py
index 3b1a48c260..5446589edb 100644
--- a/tryton/tryton/gui/window/view_form/model/group.py
+++ b/tryton/tryton/gui/window/view_form/model/group.py
@@ -358,7 +358,7 @@ class Group(SignalEvent, list):
             cmp = operator.gt
         else:
             cmp = operator.lt
-        max_id = max(0, *(r.id for r in self))
+        max_id = max(0, 0, *(r.id for r in self))
         for record in self:
             # Assume not loaded records are correctly ordered
             # as far as we do not change any previous records.