diff --git a/src/MQTTClient.h b/src/MQTTClient.h
index 1713b03c..7b3f5725 100644
--- a/src/MQTTClient.h
+++ b/src/MQTTClient.h
@@ -1528,7 +1528,7 @@ LIBMQTT_API const char* MQTTClient_strerror(int code);
   * This server behaviour is allowed in MQTT 5.0, but not in MQTT 3.1.1, so the
   * disconnected callback will never be invoked if you use MQTT 3.1.1.
   *
-  * In particular, you must make a publish call within the message arrived callback.
+  * In particular, you must not make a publish call within the message arrived callback.
   * These restrictions are all lifted in the
   * <a href="../../MQTTAsync/html/index.html">MQTTAsync API</a>.
   *