diff --git a/app/src/main/kotlin/com/simplemobiletools/clock/receivers/AlarmReceiver.kt b/app/src/main/kotlin/com/simplemobiletools/clock/receivers/AlarmReceiver.kt
index 8b3cf4fb..289d3448 100644
--- a/app/src/main/kotlin/com/simplemobiletools/clock/receivers/AlarmReceiver.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/clock/receivers/AlarmReceiver.kt
@@ -73,7 +73,7 @@ class AlarmReceiver : BroadcastReceiver() {
         }
 
         if (alarm.vibrate) {
-            val vibrateArray = LongArray(100) { 500 }
+            val vibrateArray = LongArray(1200) { 500 }
             builder.setVibrate(vibrateArray)
         }