diff --git a/src/authorize.ts b/src/authorize.ts
index 0dfed57..6d0c952 100644
--- a/src/authorize.ts
+++ b/src/authorize.ts
@@ -10,6 +10,7 @@ interface ExtendedError extends Error {
 interface ExtendedSocket extends Socket {
   encodedToken?: string
   decodedToken?: any
+}
 
 type SocketIOMiddleware = (
   socket: ExtendedSocket,