diff --git a/addons/stock/models/stock_move.py b/addons/stock/models/stock_move.py
index c9a50f3f704..70c9fe55d14 100644
--- a/addons/stock/models/stock_move.py
+++ b/addons/stock/models/stock_move.py
@@ -498,9 +498,12 @@ class StockMove(models.Model):
         self._push_apply()
         return self
 
+    def _set_default_price_moves(self):
+        return self.filtered(lambda move: not move.price_unit)
+
     def set_default_price_unit_from_product(self):
         """ Set price to move, important in inter-company moves or receipts with only one partner """
-        for move in self.filtered(lambda move: not move.price_unit):
+        for move in self._set_default_price_moves():
             move.write({'price_unit': move.product_id.standard_price})
     attribute_price = set_default_price_unit_from_product
 
diff --git a/addons/stock_account/models/stock.py b/addons/stock_account/models/stock.py
index e5087c67814..074a0ab748d 100644
--- a/addons/stock_account/models/stock.py
+++ b/addons/stock_account/models/stock.py
@@ -173,6 +173,12 @@ class StockQuant(models.Model):
 class StockMove(models.Model):
     _inherit = "stock.move"
 
+    def _set_default_price_moves(self):
+        # When the cost method is in real or average price, the price can be set to 0.0 on the PO
+        # So the price doesn't have to be updated
+        moves = super(StockMove, self)._set_default_price_moves()
+        return moves.filtered(lambda m: not m.product_id.cost_method in ('real', 'average'))
+
     @api.multi
     def action_done(self):
         self.product_price_update_before_done()