diff --git a/oauth2/introspector.go b/oauth2/introspector.go
index 9efc16520d0..2f7995914c3 100644
--- a/oauth2/introspector.go
+++ b/oauth2/introspector.go
@@ -78,9 +78,12 @@ type Introspection struct {
 	// IssuerURL is a string representing the issuer of this token
 	Issuer string `json:"iss,omitempty"`
 
-	// TokenType is the introspected token's type, for example `access_token` or `refresh_token`.
+	// TokenType is the introspected token's type, typically `Bearer`.
 	TokenType string `json:"token_type,omitempty"`
 
+	// TokenUse is the introspected token's use, for example `access_token` or `refresh_token`.
+	TokenUse string `json:"token_use,omitempty"`
+
 	// Extra is arbitrary data set by the session.
 	Extra map[string]interface{} `json:"ext,omitempty"`
 }