diff --git a/addons/stock/stock.py b/addons/stock/stock.py
index b09f6a5f067..9a0a572d937 100644
--- a/addons/stock/stock.py
+++ b/addons/stock/stock.py
@@ -916,6 +916,10 @@ class stock_picking(osv.osv):
             return backorder_id
         return False
 
+    def recheck_availability(self, cr, uid, picking_ids, context=None):
+        self.action_assign(cr, uid, picking_ids, context=context)
+        self.do_prepare_partial(cr, uid, picking_ids, context=context)
+
     def do_prepare_partial(self, cr, uid, picking_ids, context=None):
         #TODO refactore me
         context = context or {}
@@ -1892,7 +1896,6 @@ class stock_move(osv.osv):
         picking_obj = self.pool.get("stock.picking")
         quant_obj = self.pool.get("stock.quant")
         pack_op_obj = self.pool.get("stock.pack.operation")
-        pack_obj = self.pool.get("stock.quant.package")
         todo = [move.id for move in self.browse(cr, uid, ids, context=context) if move.state == "draft"]
         if todo:
             self.action_confirm(cr, uid, todo, context=context)
diff --git a/addons/stock/stock_view.xml b/addons/stock/stock_view.xml
index 6106135ea3e..208907a262a 100644
--- a/addons/stock/stock_view.xml
+++ b/addons/stock/stock_view.xml
@@ -799,7 +799,7 @@
                                     <field name="pack_operation_exist" invisible="1"/>
                                     <button name="action_pack" string="Create Package" type="object" attrs="{'invisible': ['|',('pack_operation_exist', '=', False),('state', 'not in', ('draft','assigned','partially_available','confirmed'))]}" class="oe_link oe_right oe_inline" groups="product.group_stock_packaging"/>
                                     <button name="do_split" string="Create Draft Backorder" groups="base.group_no_one" type="object" attrs="{'invisible': ['|',('pack_operation_exist', '=', False),('state','not in',('assigned', 'partially_available'))]}" class="oe_link oe_right oe_inline"/>
-                                    <button name="do_prepare_partial" string="Recheck Availability" type="object" attrs="{'invisible': ['|',('pack_operation_exist', '=', False),('state','not in',('assigned', 'partially_available'))]}" groups="stock.group_stock_user" class="oe_link oe_right oe_inline"/>
+                                    <button name="recheck_availability" string="Recheck Availability" type="object" attrs="{'invisible': ['|',('pack_operation_exist', '=', False),('state','not in',('assigned', 'partially_available'))]}" groups="stock.group_stock_user" class="oe_link oe_right oe_inline"/>
                                 </group>
                             </group>
                             <field name="pack_operation_ids" attrs="{'invisible': [('pack_operation_exist', '=', False)]}" context="{'default_owner_id': owner_id}">