diff --git a/mrp_multi_level/models/product_mrp_area.py b/mrp_multi_level/models/product_mrp_area.py
index 6bbde65e6..3b9e48ffd 100644
--- a/mrp_multi_level/models/product_mrp_area.py
+++ b/mrp_multi_level/models/product_mrp_area.py
@@ -196,3 +196,11 @@ class ProductMRPArea(models.Model):
                 self.mrp_maximum_order_qty:
             return self.mrp_maximum_order_qty
         return qty_to_order
+
+    @api.multi
+    def _to_be_exploded(self):
+        self.ensure_one()
+        if self.supply_method == 'manufacture':
+            return True
+        else:
+            return False
diff --git a/mrp_multi_level/wizards/mrp_multi_level.py b/mrp_multi_level/wizards/mrp_multi_level.py
index a6af071e6..1c6f68890 100644
--- a/mrp_multi_level/wizards/mrp_multi_level.py
+++ b/mrp_multi_level/wizards/mrp_multi_level.py
@@ -273,7 +273,7 @@ class MultiLevelMrp(models.TransientModel):
             planned_order = self.env['mrp.planned.order'].create(order_data)
             qty_ordered = qty_ordered + qty
 
-            if product_mrp_area_id.supply_method == 'manufacture':
+            if product_mrp_area_id._to_be_exploded():
                 self.explode_action(
                     product_mrp_area_id, mrp_action_date,
                     name, qty, planned_order)