diff --git a/open_workshop_base/models/ows_models.py b/open_workshop_base/models/ows_models.py
index 96bc5a4..ba89c2c 100644
--- a/open_workshop_base/models/ows_models.py
+++ b/open_workshop_base/models/ows_models.py
@@ -194,7 +194,7 @@ class ResPartner(models.Model):
                     <tbody>
                 """
 
-                machines = self.env['ows.machine'].search([('area_id', '=', area.id)], order="name")
+                machines = self.env['ows.machine'].search([('area_id', '=', area.id), ('category', '=', 'red')], order="name")
 
                 for machine in machines:
                     access = self.env['ows.machine.access'].search([