diff --git a/sanic/app.py b/sanic/app.py
index 0e59c9c5..27030057 100644
--- a/sanic/app.py
+++ b/sanic/app.py
@@ -290,7 +290,7 @@ class Sanic:
             return handler
 
         return response
-		
+
     # Decorator
     def middleware(self, middleware_or_request):
         """Decorate and register middleware to be called before a request.