diff --git a/just_audio/lib/just_audio.dart b/just_audio/lib/just_audio.dart
index a5d2026..8ab1451 100644
--- a/just_audio/lib/just_audio.dart
+++ b/just_audio/lib/just_audio.dart
@@ -1315,7 +1315,7 @@ class ConcatenatingAudioSource extends AudioSource {
 
   ConcatenatingAudioSource({
     @required this.children,
-    this.useLazyPreparation = false,
+    this.useLazyPreparation = true,
   });
 
   @override