diff --git a/addons/stock/wizard/stock_move.py b/addons/stock/wizard/stock_move.py
index fad31d774ce..0d6b03fc3bd 100644
--- a/addons/stock/wizard/stock_move.py
+++ b/addons/stock/wizard/stock_move.py
@@ -20,6 +20,7 @@
 ##############################################################################
 
 from osv import fields, osv
+from tools.translate import _
 
 import decimal_precision as dp
 
@@ -197,6 +198,8 @@ class split_in_production_lot(osv.osv_memory):
                 res.update({'qty': move.product_qty})
             if 'use_exist' in fields:
                 res.update({'use_exist': (move.picking_id and move.picking_id.type=='out' and True) or False})
+            if 'location_id' in fields:
+                res.update({'location_id': move.location_id.id})
         return res
 
     _columns = {
@@ -206,6 +209,7 @@ class split_in_production_lot(osv.osv_memory):
         'line_ids': fields.one2many('stock.move.split.lines', 'lot_id', 'Production Lots'),
         'line_exist_ids': fields.one2many('stock.move.split.lines.exist', 'lot_id', 'Production Lots'),
         'use_exist' : fields.boolean('Existing Lots', help="Check this option to select existing lots in the list below, otherwise you should enter new ones line by line."),
+        'location_id': fields.many2one('stock.location', 'Source Location', required=True, select=True),
      }
 
     def split_lot(self, cr, uid, ids, context=None):
@@ -307,6 +311,13 @@ class stock_move_split_lines_exist(osv.osv_memory):
         'quantity': lambda *x: 1.00,
     }
 
+    def onchange_lot_id(self, cr, uid, ids, prodlot_id=False, product_qty=False,
+                        loc_id=False, product_id=False, uom_id=False, context=None):
+        stock_move_obj = self.pool.get('stock.move')
+        res = stock_move_obj.onchange_lot_id(cr, uid, ids, prodlot_id, product_qty,
+                        loc_id, product_id, uom_id, context=context)
+        return res
+
 stock_move_split_lines_exist()
 
 class stock_move_split_lines(osv.osv_memory):
diff --git a/addons/stock/wizard/stock_move_view.xml b/addons/stock/wizard/stock_move_view.xml
index baaa581b4f3..5f4bc1f71c5 100644
--- a/addons/stock/wizard/stock_move_view.xml
+++ b/addons/stock/wizard/stock_move_view.xml
@@ -118,6 +118,7 @@
                           <field name="product_uom" readonly="1"/>
                       </group>
                   </group>
+                  <field name="location_id" invisible="1"/>
 
                   <group colspan="4" attrs="{'invisible':[('use_exist','=',True)]}">
                         <field name="line_ids" colspan="4" nolabel="1">
@@ -134,12 +135,12 @@
                   <group colspan="4" attrs="{'invisible':[('use_exist','!=',True)]}">
                         <field name="line_exist_ids" colspan="4" nolabel="1">
                             <tree string="Production Lot Numbers" editable="bottom">
-                                <field name="prodlot_id" string="Lot number" domain="[('product_id','=',parent.product_id)]"/>
-                                <field name="quantity" />
+                                <field name="prodlot_id" string="Lot number" domain="[('product_id','=',parent.product_id)]" on_change="onchange_lot_id(prodlot_id, quantity, parent.location_id, parent.product_id, parent.product_uom)"/>
+                                <field name="quantity" on_change="onchange_lot_id(prodlot_id, quantity, parent.location_id, parent.product_id, parent.product_uom)" />
                             </tree>
                             <form string="Production Lot Number">
-                                <field name="prodlot_id" string="Lot number" domain="[('product_id','=',parent.product_id)]"/>
-                                <field name="quantity" />
+                                <field name="prodlot_id" string="Lot number" domain="[('product_id','=',parent.product_id)]" on_change="onchange_lot_id(prodlot_id, quantity, parent.location_id, parent.product_id, parent.product_uom)"/>
+                                <field name="quantity" on_change="onchange_lot_id(prodlot_id, quantity, parent.location_id, parent.product_id, parent.product_uom)" />
                             </form>
                         </field>
                     </group>