diff --git a/server/models/workspaceChats.js b/server/models/workspaceChats.js
index 1dd205174..4fae46b9f 100644
--- a/server/models/workspaceChats.js
+++ b/server/models/workspaceChats.js
@@ -80,6 +80,7 @@ const WorkspaceChats = {
         where: {
           workspaceId,
           user_id: user?.id,
+          thread_id: null, // this function is now only used for the default thread on workspaces
         },
         data: {
           include: false,