diff --git a/passport-facebook/passport-facebook.d.ts b/passport-facebook/passport-facebook.d.ts
index 855b033f5..26479cc29 100644
--- a/passport-facebook/passport-facebook.d.ts
+++ b/passport-facebook/passport-facebook.d.ts
@@ -13,6 +13,7 @@ declare module 'passport-facebook' {
     interface Profile extends passport.Profile {
         gender: string;
         profileUrl: string;
+        username: string;
     }
 
     interface IStrategyOption {