diff --git a/source/_integrations/shelly.markdown b/source/_integrations/shelly.markdown
index 0fb4026ce4c..68f2c458206 100644
--- a/source/_integrations/shelly.markdown
+++ b/source/_integrations/shelly.markdown
@@ -122,6 +122,10 @@ Depending on how a device's button type is configured, the integration will crea
 
 For generation 2 hardware it's possible to select if a device's input is connected to a button or a switch. Binary sensors are created only if the input mode is set to `switch`. When the input is of type `button` you need to use events for your automations.
 
+## Event entities (generation 1)
+
+If the **BUTTON TYPE** of the switch connected to the device is set to `momentary` or `detached switch`, the integration creates an event entity for this switch. You can use this entity in your automations.
+
 ## Event entities (generation 2)
 
 If the **Input Mode** of the switch connected to the device is set to `Button`, the integration creates an event entity for this switch. You can use this entity in your automations.