diff --git a/back/methods/chat/sendCheckingPresence.js b/back/methods/chat/sendCheckingPresence.js
index b2a3ca725..7e74a6980 100644
--- a/back/methods/chat/sendCheckingPresence.js
+++ b/back/methods/chat/sendCheckingPresence.js
@@ -37,7 +37,7 @@ module.exports = Self => {
                 }
             });
             const department = workerDepartment && workerDepartment.department();
-            const channelName = department.chatName;
+            const channelName = department && department.chatName;
 
             if (channelName)
                 return Self.send(ctx, `#${channelName}`, `@${account.name} => ${message}`);