diff --git a/account_asset_management/models/account_asset.py b/account_asset_management/models/account_asset.py
index 02efcb7b7..49e65fc52 100644
--- a/account_asset_management/models/account_asset.py
+++ b/account_asset_management/models/account_asset.py
@@ -1088,7 +1088,8 @@ class AccountAsset(models.Model):
             except:
                 e = exc_info()[0]
                 tb = ''.join(format_exception(*exc_info()))
-                asset_ref = depreciation.asset_id.code and '%s (ref: %s)' \
+                asset = depreciation.asset_id
+                asset_ref = asset.code and '%s (ref: %s)' \
                     % (asset.name, asset.code) or asset.name
                 error_log += _(
                     "\nError while processing asset '%s': %s"