diff --git a/app/lib/services/wals.dart b/app/lib/services/wals.dart
index ee216852591..491d27fc827 100644
--- a/app/lib/services/wals.dart
+++ b/app/lib/services/wals.dart
@@ -142,9 +142,10 @@ class Wal {
       this.storageOffset = 0,
       this.storageTotalBytes = 0,
       this.fileNum = 1,
-      this.data = const [],
+      List<List<int>>? data,
       this.totalFrames = 0,
       this.syncedFrameOffset = 0}) {
+    this.data = data ?? <List<int>>[];
     frameSize = codec.getFrameSize();
   }