diff --git a/discord/message.go b/discord/message.go
index 50d3dbf..1f7e9b8 100644
--- a/discord/message.go
+++ b/discord/message.go
@@ -89,6 +89,10 @@ type Message struct {
 	// Application is sent with Rich Presence-related chat embeds.
 	Application *MessageApplication `json:"application,omitempty"`
 
+	// ApplicationID contains the ID of the application, if this message was
+	// generated by an interaction or an application-owned webhook.
+	ApplicationID AppID `json:"application_id,omitempty"`
+
 	// Reference is the reference data sent with crossposted messages and
 	// inline replies.
 	Reference *MessageReference `json:"message_reference,omitempty"`