diff --git a/app/src/main/java/xdsopl/robot36/MainActivity.java b/app/src/main/java/xdsopl/robot36/MainActivity.java
index 53301f9..cf14e75 100644
--- a/app/src/main/java/xdsopl/robot36/MainActivity.java
+++ b/app/src/main/java/xdsopl/robot36/MainActivity.java
@@ -73,7 +73,10 @@ public class MainActivity extends AppCompatActivity {
 
     private void showNotification() {
         Intent intent = new Intent(this, MainActivity.class);
-        PendingIntent pending = PendingIntent.getActivity(this, 0, intent, 0);
+        int flags = 0;
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S)
+            flags = PendingIntent.FLAG_IMMUTABLE;
+        PendingIntent pending = PendingIntent.getActivity(this, 0, intent, flags);
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
             NotificationChannel channel = manager.getNotificationChannel(channelID);
             if (channel == null) {