diff --git a/purchase.py b/purchase.py
index 571dced6d8..317cb8b485 100644
--- a/purchase.py
+++ b/purchase.py
@@ -996,7 +996,7 @@ class PurchaseLine(ModelSQL, ModelView):
     def get_move_done(self, name):
         Uom = Pool().get('product.uom')
         done = True
-        if not self.product:
+        if self.type != 'line' or not self.product:
             return True
         if self.product.type == 'service':
             return True