diff --git a/apps/twenties/boot.js b/apps/twenties/boot.js
index 180f4cbb7..722af43bc 100644
--- a/apps/twenties/boot.js
+++ b/apps/twenties/boot.js
@@ -2,12 +2,13 @@
   const move = 20 * 60 * 1000; // 20 minutes
   const look = 20 * 1000;      // 20 seconds
 
-  buzz = _ => {
+  const buzz = _ => {
     const date = new Date();
     const day = date.getDay();
     const hour = date.getHours();
     // buzz at work
-    if (day <= 5 && hour >= 8 && hour <= 17) {
+    if (day >= 1 && day <= 5 &&
+      hour >= 8 && hour <= 17) {
       Bangle.buzz().then(_ => {
         setTimeout(Bangle.buzz, look);
       });
@@ -15,4 +16,4 @@
   };
 
   setInterval(buzz, move); // buzz to stand / sit
-})();
\ No newline at end of file
+})();