diff --git a/attachment_metadata/models/attachment.py b/attachment_metadata/models/attachment.py
index 15e3e56a6..e21e29830 100644
--- a/attachment_metadata/models/attachment.py
+++ b/attachment_metadata/models/attachment.py
@@ -26,10 +26,10 @@ class IrAttachmentMetadata(models.Model):
         'ir.attachment', required=True, ondelete='cascade',
         help="Link to ir.attachment model ")
     file_type = fields.Selection(
-            selection="_get_file_type",
-            string="File type",
-            help="The file type determines an import method to be used "
-                 "to parse and transform data before their import in ERP")
+        selection="_get_file_type",
+        string="File type",
+        help="The file type determines an import method to be used "
+        "to parse and transform data before their import in ERP")
 
     @api.depends('datas', 'external_hash')
     def _compute_hash(self):