diff --git a/back/methods/chat/sendCheckingPresence.js b/back/methods/chat/sendCheckingPresence.js
index 3bc022429..075591969 100644
--- a/back/methods/chat/sendCheckingPresence.js
+++ b/back/methods/chat/sendCheckingPresence.js
@@ -43,6 +43,9 @@ module.exports = Self => {
         if (!recipient)
             throw new Error(`Could not send message "${message}" to worker id ${recipientId} from user ${userId}`);
 
+        if (process.env.NODE_ENV == 'test')
+            message = `[Test:Environment to user ${userId}] ` + message;
+
         await models.Chat.create({
             senderFk: sender.id,
             recipient: `@${recipient.name}`,