diff --git a/ts/models/conversation.ts b/ts/models/conversation.ts
index 717ce4522..d1a1421e1 100644
--- a/ts/models/conversation.ts
+++ b/ts/models/conversation.ts
@@ -337,8 +337,8 @@ export class ConversationModel extends Backbone.Model<ConversationAttributes> {
       );
     }
 
-    if (this.get('hasOutdatedClient')) {
-      toRet.hasOutdatedClient = this.get('hasOutdatedClient');
+    if (this.getHasOutdatedClient()) {
+      toRet.hasOutdatedClient = this.getHasOutdatedClient();
     }
 
     if (
diff --git a/ts/util/expiringMessages.ts b/ts/util/expiringMessages.ts
index b4f32521c..b07780a55 100644
--- a/ts/util/expiringMessages.ts
+++ b/ts/util/expiringMessages.ts
@@ -612,10 +612,10 @@ export async function checkHasOutdatedDisappearingMessageClient(
   const outdatedSender =
     sender.get('nickname') || sender.get('displayNameInProfile') || sender.get('id');
 
-  if (convoToUpdate.get('hasOutdatedClient')) {
+  if (convoToUpdate.getHasOutdatedClient()) {
     // trigger notice banner
     if (isOutdated) {
-      if (convoToUpdate.get('hasOutdatedClient') !== outdatedSender) {
+      if (convoToUpdate.getHasOutdatedClient() !== outdatedSender) {
         convoToUpdate.set({
           hasOutdatedClient: outdatedSender,
         });