diff --git a/source/_integrations/simplisafe.markdown b/source/_integrations/simplisafe.markdown
index c53b1655d10..7b2fddb84a3 100644
--- a/source/_integrations/simplisafe.markdown
+++ b/source/_integrations/simplisafe.markdown
@@ -95,14 +95,14 @@ Set one or more system properties.
 web and mobile apps. When received, they come with event data that contains the
 following keys:
 
-* `changed_by`: the PIN that triggered the event (if appropriate)
-* `event_type`: the type of event
-* `info`: a human-friendly string describing the event in more detail
-* `sensor_name`: the sensor that triggered the event (if appropriate)
-* `sensor_serial`: the serial number of the sensor that triggered the event (if appropriate)
-* `sensor_type`: the type of sensor that triggered the event (if appropriate)
+* `last_event_changed_by`: the PIN that triggered the event (if appropriate)
+* `last_event_type`: the type of event
+* `last_event_info`: a human-friendly string describing the event in more detail
+* `last_event_sensor_name`: the sensor that triggered the event (if appropriate)
+* `last_event_sensor_serial`: the serial number of the sensor that triggered the event (if appropriate)
+* `last_event_sensor_type`: the type of sensor that triggered the event (if appropriate)
 * `system_id`: the system ID to which the event belongs
-* `timestamp`: the UTC datetime at which the event was received
+* `last_event_timestamp`: the UTC datetime at which the event was received
 
 For example, when someone rings the doorbell, a
 `SIMPLISAFE_EVENT` event will fire with the following event data: