diff --git a/ts/groups.ts b/ts/groups.ts
index e5ac5f6829c..0c4ac6af25e 100644
--- a/ts/groups.ts
+++ b/ts/groups.ts
@@ -2826,7 +2826,7 @@ async function updateGroup(
   //   Unknown Group in the left pane.
   let activeAt = null;
   if (viaSync) {
-    activeAt = null;
+    activeAt = conversation.get('active_at') || null;
   } else if ((isInitialDataFetch || justJoinedGroup) && newAttributes.name) {
     activeAt = initialSentAt;
   } else {