diff --git a/common/FileWriterSettings.h b/common/FileWriterSettings.h
index be2cfeaf..e9011e68 100644
--- a/common/FileWriterSettings.h
+++ b/common/FileWriterSettings.h
@@ -7,7 +7,7 @@
 #include "JFJochMessages.h"
 
 class FileWriterSettings {
-    FileWriterFormat hdf5_master_format_version = FileWriterFormat::NXmxLegacy;
+    FileWriterFormat hdf5_master_format_version = FileWriterFormat::NXmxVDS;
     bool overwrite_files = false;
 public:
     FileWriterSettings &OverwriteExistingFiles(bool input);