diff --git a/apps/assets/models/node.py b/apps/assets/models/node.py
index 8d006a40e..c919edff6 100644
--- a/apps/assets/models/node.py
+++ b/apps/assets/models/node.py
@@ -185,7 +185,7 @@ class Node(OrgModelMixin):
             else:
                 set_current_org(Organization.root())
                 org_nodes_roots = cls.objects.filter(key__regex=r'^[0-9]+$')
-                org_nodes_roots_keys = org_nodes_roots.values_list('key', flat=True)
+                org_nodes_roots_keys = org_nodes_roots.values_list('key', flat=True) or [0]
                 key = max([int(k) for k in org_nodes_roots_keys]) + 1
                 set_current_org(_current_org)
             root = cls.objects.create(key=key, value=_current_org.name)