diff --git a/types/oauth2orize/index.d.ts b/types/oauth2orize/index.d.ts
index 798030c7d2..b3a62d01e4 100644
--- a/types/oauth2orize/index.d.ts
+++ b/types/oauth2orize/index.d.ts
@@ -99,6 +99,7 @@ export class OAuth2Server {
 
   decision(options: DecisionOptions, parse: DecisionParseFunction): MiddlewareFunction;
   decision(parse: DecisionParseFunction): MiddlewareFunction;
+  decision(): MiddlewareFunction;
 
   token(options?: any): MiddlewareFunction;