diff --git a/lib/serialport-parsers.js b/lib/serialport-parsers.js
index 33d56a3..222e510 100644
--- a/lib/serialport-parsers.js
+++ b/lib/serialport-parsers.js
@@ -100,7 +100,7 @@ parserReadline.on('data', (data) => {
     }
 
     if (pduParsed && pduParsed.constructor.name !== 'Deliver') {
-        logger.warn('Unknown PDU message type name', { typeName: pduParsed.constructor.name, type: pduParsed.getType(), data: data.toString().trim() });
+        logger.warn('Unknown PDU message type name. PLEASE REPORT IT TO DEVELOPER AT TEKTRANS', { typeName: pduParsed.constructor.name, type: pduParsed.getType(), data: data.toString().trim() });
     }
 
     if (pduParsed && pduParsed.constructor.name === 'Deliver' && pduParsed.getType && pduParsed.getType().getSrr()) {