diff --git a/attachment_category/__manifest__.py b/attachment_category/__manifest__.py
index 5a09a117..30c71f89 100644
--- a/attachment_category/__manifest__.py
+++ b/attachment_category/__manifest__.py
@@ -5,7 +5,7 @@
     "name": "Atachment Category",
     "summary": """
         Adds a document category to help classification""",
-    "version": "13.0.1.0.0",
+    "version": "14.0.1.0.0",
     "license": "AGPL-3",
     "author": "ACSONE SA/NV,Odoo Community Association (OCA)",
     "depends": ["base"],
diff --git a/attachment_category/models/ir_attachment_category.py b/attachment_category/models/ir_attachment_category.py
index 790e276e..dc48811c 100644
--- a/attachment_category/models/ir_attachment_category.py
+++ b/attachment_category/models/ir_attachment_category.py
@@ -41,11 +41,14 @@ class IrAttachmentCategory(models.Model):
             else:
                 category.display_name = category.name
 
-    @api.depends()
     def _compute_attachment_count(self):
         category_obj = self.env["ir.attachment.category"]
         attachment_obj = self.env["ir.attachment"]
         for category in self:
+            if isinstance(category.id, models.NewId):
+                category.attachment_count = 0
+                category.attachment_ids = attachment_obj.browse()
+                continue
             child_categories = category_obj.search([("id", "child_of", category.id)])
             attachment_ids = attachment_obj.search(
                 [("category_ids", "in", child_categories.ids)]