diff --git a/asset.py b/asset.py
index 35a24f4429..26b17076bd 100644
--- a/asset.py
+++ b/asset.py
@@ -702,6 +702,7 @@ class Asset(Workflow, ModelSQL, ModelView):
         else:
             default = default.copy()
         default.setdefault('lines', [])
+        default.setdefault('update_moves', [])
         default.setdefault('number', None)
         default.setdefault('supplier_invoice_line', None)
         default.setdefault('move')