diff --git a/subscription.py b/subscription.py
index f6fbf2cf44..130fc7dfdc 100644
--- a/subscription.py
+++ b/subscription.py
@@ -242,6 +242,12 @@ class Subscription(Workflow, ModelSQL, ModelView):
         default.setdefault('next_invoice_date', None)
         return super(Subscription, cls).copy(subscriptions, default=default)
 
+    @classmethod
+    def view_attributes(cls):
+        return [
+            ('/tree', 'visual', If(Eval('state') == 'canceled', 'muted', '')),
+            ]
+
     @classmethod
     @ModelView.button
     @Workflow.transition('canceled')