diff --git a/services/track-changes/app/js/UpdatesManager.js b/services/track-changes/app/js/UpdatesManager.js
index fae1b8f0e7..9f03877044 100644
--- a/services/track-changes/app/js/UpdatesManager.js
+++ b/services/track-changes/app/js/UpdatesManager.js
@@ -50,7 +50,7 @@ module.exports = UpdatesManager = {
       const op = rawUpdates[i]
       if (i > 0) {
         const thisVersion = op != null ? op.v : undefined
-        const prevVersion = __guard__(rawUpdates[i - 1], x => x.v)
+        const prevVersion = rawUpdates[i - 1]?.v
         if (!(prevVersion < thisVersion)) {
           logger.error(
             {