diff --git a/types/passport-strategy/index.d.ts b/types/passport-strategy/index.d.ts
index 1a0b2dd4f5..33b35ddbaf 100644
--- a/types/passport-strategy/index.d.ts
+++ b/types/passport-strategy/index.d.ts
@@ -45,7 +45,7 @@ declare class Strategy implements passport.Strategy {
      * @param {Object} info
      * @api public
      */
-    success(user: any, info: any): void;
+    success(user: any, info?: any): void;
 
     /**
      * Fail authentication, with optional `challenge` and `status`, defaulting
diff --git a/types/passport-strategy/passport-strategy-tests.ts b/types/passport-strategy/passport-strategy-tests.ts
index e9c6fd604f..4b8090d241 100644
--- a/types/passport-strategy/passport-strategy-tests.ts
+++ b/types/passport-strategy/passport-strategy-tests.ts
@@ -33,7 +33,7 @@ export class Strategy extends passport.Strategy {
 
         var self = this;
 
-        function verified(err: Error, user: any, info: any) {
+        function verified(err: Error, user: any, info?: any) {
             if (err) {
                 return self.error(err);
             }
@@ -43,6 +43,6 @@ export class Strategy extends passport.Strategy {
             self.success(user, info);
         }
 
-        verified(null, {}, {});
+        verified(null, {});
     }
 }