diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 914c2fcb..17d63d77 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -9,7 +9,9 @@
         android:label="@string/app_name"
         android:theme="@style/AppTheme">
 
-        <activity android:name=".ui.MainActivity">
+        <activity
+            android:name=".ui.MainActivity"
+            android:launchMode="singleTop">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.LAUNCHER" />
diff --git a/app/src/main/java/com/example/util/simpletimetracker/notification/NotificationManagerImpl.kt b/app/src/main/java/com/example/util/simpletimetracker/notification/NotificationManagerImpl.kt
index 4fb00c04..6b31ac8e 100644
--- a/app/src/main/java/com/example/util/simpletimetracker/notification/NotificationManagerImpl.kt
+++ b/app/src/main/java/com/example/util/simpletimetracker/notification/NotificationManagerImpl.kt
@@ -32,10 +32,13 @@ class NotificationManagerImpl @Inject constructor(
     }
 
     private fun buildNotification(params: NotificationParams): Notification {
+        val startIntent = Intent(context, MainActivity::class.java).apply {
+            flags = Intent.FLAG_ACTIVITY_CLEAR_TOP or Intent.FLAG_ACTIVITY_SINGLE_TOP
+        }
         val contentIntent = PendingIntent.getActivity(
             context,
             0,
-            Intent(context, MainActivity::class.java),
+            startIntent,
             PendingIntent.FLAG_UPDATE_CURRENT
         )
         val builder = NotificationCompat.Builder(context, REMINDERS_CHANNEL_ID)
@@ -43,7 +46,7 @@ class NotificationManagerImpl @Inject constructor(
             .setContentTitle("Simple Time Tracker")
             .setContentText(params.text)
             .setContentIntent(contentIntent)
-        // TODO not closable
+            .setOngoing(true)
         return builder.build()
     }