diff --git a/addons/purchase/purchase.py b/addons/purchase/purchase.py
index 8413cbfe702..e55d9ff98df 100644
--- a/addons/purchase/purchase.py
+++ b/addons/purchase/purchase.py
@@ -747,6 +747,10 @@ class purchase_order(osv.osv):
         ''' prepare the stock move data from the PO line. This function returns a list of dictionary ready to be used in stock.move's create()'''
         product_uom = self.pool.get('product.uom')
         price_unit = order_line.price_unit
+        if order_line.taxes_id:
+            taxes = self.pool['account.tax'].compute_all(cr, uid, order_line.taxes_id, price_unit, 1.0,
+                                                             order_line.product_id, order.partner_id)
+            price_unit = taxes['total']
         if order_line.product_uom.id != order_line.product_id.uom_id.id:
             price_unit *= order_line.product_uom.factor / order_line.product_id.uom_id.factor
         if order.currency_id.id != order.company_id.currency_id.id: