diff --git a/README.md b/README.md
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@@ -126,7 +126,7 @@ MQTT is a lightweight client-server publish/subscribe messaging protocol, optimi
 * [TMQTTClient](http://jamiei.com/blog/code/mqtt-client-library-for-delphi/) - MQTT Client Library for Delphi.
 * [Vert.x MQTT](https://github.com/vert-x3/vertx-mqtt) - Vert.x component that provides methods for connecting/disconnecting to a broker, publishing messages and subscribing to topics.
 * [wolfMQTT](https://www.wolfssl.com/products/wolfmqtt/) - A client implementation of the MQTT written in C for embedded use. It supports SSL/TLS via the wolfSSL library.
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+* [CODESYS-MQTT](https://github.com/stefandreyer/CODESYS-MQTT) - A MQTT client for CODESYS PLC
 
 ### Scripting