diff --git a/timesheet_description/__manifest__.py b/timesheet_description/__manifest__.py
index 090b3f75..63724af7 100644
--- a/timesheet_description/__manifest__.py
+++ b/timesheet_description/__manifest__.py
@@ -1,6 +1,6 @@
 {
     'name': 'Timesheet Description',
-    'version': '12.0.1.0.0',
+    'version': '13.0.1.0.0',
     'author': 'Hibou Corp. <hello@hibou.io>',
     'website': 'https://hibou.io/',
     'license': 'AGPL-3',
diff --git a/timesheet_description/models/timesheet.py b/timesheet_description/models/timesheet.py
index 30cd3401..30b71e43 100644
--- a/timesheet_description/models/timesheet.py
+++ b/timesheet_description/models/timesheet.py
@@ -11,7 +11,6 @@ class AnalyticLine(models.Model):
 
     name_markdown = fields.Html(compute='_compute_name_markdown')
 
-    @api.multi
     def _compute_name_markdown(self):
         if not markdown:
             for line in self: