diff --git a/apps/sched/clkinfo.js b/apps/sched/clkinfo.js
index a336c988d..8a5576181 100644
--- a/apps/sched/clkinfo.js
+++ b/apps/sched/clkinfo.js
@@ -127,9 +127,13 @@
         run: function() {
           if (a.date) return; // ignore events
           a.on = !a.on;
+          if (a.on) {
+            // use sched to start the alarm,
+            // so it takes care of timers etc
+            alarm.setAlarm(a.id, a);
+          }
           this.emit("redraw");
-          alarm.setAlarms(all);
-          alarm.reload();
+          alarm.reload(); // schedule/unschedule the alarm
         }
       })),
   };