diff --git a/library/ui/src/main/java/com/google/android/exoplayer2/ui/PlayerNotificationManager.java b/library/ui/src/main/java/com/google/android/exoplayer2/ui/PlayerNotificationManager.java
index 6c3441a849..f59a211504 100644
--- a/library/ui/src/main/java/com/google/android/exoplayer2/ui/PlayerNotificationManager.java
+++ b/library/ui/src/main/java/com/google/android/exoplayer2/ui/PlayerNotificationManager.java
@@ -1389,6 +1389,7 @@ public class PlayerNotificationManager {
       builder.setGroup(groupKey);
     }
 
+    builder.setOnlyAlertOnce(true);
     return builder;
   }