diff --git a/addons/account_asset/account_asset.py b/addons/account_asset/account_asset.py
index fd8b6e9b3da..bea31726b3e 100644
--- a/addons/account_asset/account_asset.py
+++ b/addons/account_asset/account_asset.py
@@ -524,7 +524,7 @@ class AccountAssetDepreciationLine(models.Model):
             created_moves.post()
         return [x.id for x in created_moves]
 
-    api.multi
+    @api.multi
     def post_lines_and_close_asset(self):
         # we re-evaluate the assets to determine whether we can close them
         for line in self: