diff --git a/modules/ticket/front/component/index.js b/modules/ticket/front/component/index.js
index 2a5988719..307f8af15 100644
--- a/modules/ticket/front/component/index.js
+++ b/modules/ticket/front/component/index.js
@@ -39,7 +39,7 @@ class Controller extends Section {
         if (!value) return;
         this.getTheoricalCost();
         this.getComponentsSum();
-        if (this.ticket.zone.isVolumetric)
+        if (this.ticket.zone && this.ticket.zone.isVolumetric)
             this.getTicketVolume();
     }