diff --git a/services/document-updater/app/js/ProjectHistoryRedisManager.js b/services/document-updater/app/js/ProjectHistoryRedisManager.js
index fe548e749d..f942f4fd31 100644
--- a/services/document-updater/app/js/ProjectHistoryRedisManager.js
+++ b/services/document-updater/app/js/ProjectHistoryRedisManager.js
@@ -168,6 +168,11 @@ const ProjectHistoryRedisManager = {
         ts: new Date(),
       },
     }
+
+    if (historyRangesSupport) {
+      projectUpdate.resyncDocContent.ranges = ranges
+    }
+
     const jsonUpdate = JSON.stringify(projectUpdate)
     // Do an optimised size check on the docLines using the serialised
     // project update length as an upper bound
diff --git a/services/document-updater/test/unit/js/ProjectHistoryRedisManager/ProjectHistoryRedisManagerTests.js b/services/document-updater/test/unit/js/ProjectHistoryRedisManager/ProjectHistoryRedisManagerTests.js
index fd1d4b3a35..2718488cad 100644
--- a/services/document-updater/test/unit/js/ProjectHistoryRedisManager/ProjectHistoryRedisManagerTests.js
+++ b/services/document-updater/test/unit/js/ProjectHistoryRedisManager/ProjectHistoryRedisManagerTests.js
@@ -260,6 +260,7 @@ describe('ProjectHistoryRedisManager', function () {
             resyncDocContent: {
               content: 'onedeleted\ntwo',
               version: this.version,
+              ranges: this.ranges,
             },
             projectHistoryId: this.projectHistoryId,
             path: this.pathname,