diff --git a/back/methods/chat/sendCheckingPresence.js b/back/methods/chat/sendCheckingPresence.js
index f67fb6942..6fa029b70 100644
--- a/back/methods/chat/sendCheckingPresence.js
+++ b/back/methods/chat/sendCheckingPresence.js
@@ -24,6 +24,8 @@ module.exports = Self => {
     });
 
     Self.sendCheckingPresence = async(ctx, workerId, message) => {
+        if (!workerId) return false;
+
         const models = Self.app.models;
         const account = await models.Account.findById(workerId);
         const userId = ctx.req.accessToken.userId;