diff --git a/source/_integrations/shelly.markdown b/source/_integrations/shelly.markdown
index c6ae4a0d2a5..81ea11b0597 100644
--- a/source/_integrations/shelly.markdown
+++ b/source/_integrations/shelly.markdown
@@ -163,6 +163,10 @@ If the **Input Mode** of the switch connected to the device is set to `Button`,
 
 Each script which generates events using [Shelly.emitEvent()](https://shelly-api-docs.shelly.cloud/gen2/Scripts/ShellyScriptLanguageFeatures#shellyemitevent) also gets an corresponding event entity. This entity is disabled by default. After changing a script, it's required to manually reload the device before new event types show up.
 
+{% note %}
+To avoid increased startup time, only the first 5 KB of the script is downloaded and analyzed. If your script exceeds 5 KB, place the event emitting function at the beginning to ensure it is processed.
+{% endnote %}
+
 For example, the following script will emit an event every time an input (button or switch) on the device is changed.
 
 ```javascript