diff --git a/models/eventType.go b/models/eventType.go
index dd36295ba..07b574da8 100644
--- a/models/eventType.go
+++ b/models/eventType.go
@@ -8,6 +8,8 @@ const (
 	MessageSent EventType = "CHAT"
 	// UserJoined is the event sent when a chat user join action takes place.
 	UserJoined EventType = "USER_JOINED"
+	// UserParted is the event sent when a chat user parted action takes place.
+	UserParted EventType = "USER_PARTED"
 	// UserNameChanged is the event sent when a chat username change takes place.
 	UserNameChanged EventType = "NAME_CHANGE"
 	// VisibiltyToggled is the event sent when a chat message's visibility changes.
diff --git a/models/webhook.go b/models/webhook.go
index 1868f3a83..af0b20159 100644
--- a/models/webhook.go
+++ b/models/webhook.go
@@ -19,6 +19,7 @@ type Webhook struct {
 var validEvents = []EventType{
 	MessageSent,
 	UserJoined,
+	UserParted,
 	UserNameChanged,
 	VisibiltyToggled,
 	StreamStarted,