diff --git a/packing.xml b/packing.xml
index c0097cd31b..41ef180c6d 100644
--- a/packing.xml
+++ b/packing.xml
@@ -207,7 +207,8 @@ this repository contains the full copyright notices and license terms. -->
                                         states="{'invisible': '''state not in ('assigned', 'draft')''', 'readonly': '''%(group_stock)d not in groups''', 'icon': '''state == 'assigned' and 'tryton-go-previous' or state == 'draft' and 'tryton-go-next' or False'''}"/>
                                 <button string="Assign" name="%(wizard_packing_out_assign)d"
                                         type="action"
-                                        states="{'invisible': '''state not in ('waiting', 'packed')''', 'readonly': '''%(group_stock)d not in groups''', 'icon': '''state == 'waiting' and 'tryton-go-next' or state == 'packed' and 'tryton-go-previous' or False'''}"/>
+                                        states="{'invisible': '''state != 'waiting' ''', 'readonly': '''%(group_stock)d not in groups'''}"
+                                        icon="tryton-next"/>
                                 <button string="Make packing" name="packed"
                                         states="{'invisible': '''state != 'assigned' ''', 'readonly': '''%(group_stock)d not in groups'''}"
                                         icon="tryton-go-next"/>
@@ -736,13 +737,6 @@ this repository contains the full copyright notices and license terms. -->
             <field name="group" ref="group_stock"/>
             <field name="signal">packed</field>
         </record>
-        <record model="workflow.transition"
-                id="packingout_trans_packed_assigned">
-            <field name="act_from" ref="packingout_act_packed"/>
-            <field name="act_to" ref="packingout_act_assigned"/>
-            <field name="group" ref="group_stock"/>
-            <field name="signal">assign</field>
-        </record>
         <record model="workflow.transition"
                 id="packingout_trans_packed_done">
             <field name="act_from" ref="packingout_act_packed"/>