diff --git a/modules/ticket/back/methods/ticket-request/confirm.js b/modules/ticket/back/methods/ticket-request/confirm.js
index 00310f33c..e782bd66e 100644
--- a/modules/ticket/back/methods/ticket-request/confirm.js
+++ b/modules/ticket/back/methods/ticket-request/confirm.js
@@ -63,7 +63,7 @@ module.exports = Self => {
 
             const isAvailable = itemStock.available > 0;
 
-            if (!isAvailable)
+            if (!isAvailable || !ctx.args.quantity)
                 throw new UserError(`This item is not available`);
 
             if (request.saleFk)