diff --git a/storage_thumbnail/models/thumbnail_mixin.py b/storage_thumbnail/models/thumbnail_mixin.py
index 736eb09647..0c3d2c5490 100644
--- a/storage_thumbnail/models/thumbnail_mixin.py
+++ b/storage_thumbnail/models/thumbnail_mixin.py
@@ -107,7 +107,7 @@ def get_or_create_thumbnail(self, size_x, size_y, url_key=None):
             vals = self.env["storage.thumbnail"]._prepare_thumbnail(
                 self, size_x, size_y, url_key
             )
-            thumbnail = self.thumbnail_ids.create(vals)
+            thumbnail = self.thumbnail_ids.sudo().create(vals)
             # invalidate field since a new record is created
             # The actual model is a mixin, therefore the inverse into
             # storage.thumbnail is not defined as a one2many to this mixin.