From cbc311e9c26292fca919b6f5a88386fa95b3f8d6 Mon Sep 17 00:00:00 2001
From: Barbudor <barbudor@barbudor.net>
Date: Wed, 6 Sep 2023 22:28:49 +0200
Subject: [PATCH] Update MQTT.md

---
 docs/MQTT.md | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/docs/MQTT.md b/docs/MQTT.md
index b2c19e8609..dc385853bd 100644
--- a/docs/MQTT.md
+++ b/docs/MQTT.md
@@ -220,9 +220,12 @@ To use it you must [compile your build](Compile-your-build). Add the following t
 #define SUPPORT_MQTT_EVENT
 #endif
 ```
-To increase the maximum MQTT message size that Tasmota is willing to process, increase the following constant by setting it in `user_config_override.h`:
+To default maximum MQTT message size that Tasmota can process is 256 bytes. You can increase it by redefining the following constant in `user_config_override.h`:
 ```
-#define RULE_MAX_MQTT_EVENTSZ  256
+#ifdef RULE_MAX_MQTT_EVENTSZ
+#undef RULE_MAX_MQTT_EVENTSZ
+#endif
+#define RULE_MAX_MQTT_EVENTSZ  512
 ```
 
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