diff --git a/src/appointment.js b/src/appointment.js
index b2f2313..6913e84 100644
--- a/src/appointment.js
+++ b/src/appointment.js
@@ -78,7 +78,8 @@ async function startBook(contactPojo, device, selectedStore, audioAnalyse, alert
 }
 
 async function startWithList(contacts, device, selectedStore, audioAnalyse, alertBeep) {
-    await contacts.reduce(async (promise, contactPojo) => {
+    let duplicatedList = [].concat(contacts).concat(contacts)
+    await duplicatedList.reduce(async (promise, contactPojo) => {
         // This line will wait for the last async function to finish.
         // The first iteration uses an already resolved Promise
         // so, it will immediately continue.