diff --git a/sanic/app.py b/sanic/app.py
index 500a6d45..e55b6bd8 100644
--- a/sanic/app.py
+++ b/sanic/app.py
@@ -836,7 +836,12 @@ class Sanic:
         **kwargs
     ):
         if "loop" in kwargs:
-            raise TypeError("loop is not a valid argument. To use an existing loop, change to create_server().\nSee more: https://sanic.readthedocs.io/en/latest/sanic/deploying.html#asynchronous-support")
+            raise TypeError(
+                "loop is not a valid argument. To use an existing loop, "
+                "change to create_server().\nSee more: "
+                "https://sanic.readthedocs.io/en/latest/sanic/deploying.html"
+                "#asynchronous-support"
+                )
 
         """Run the HTTP Server and listen until keyboard interrupt or term
         signal. On termination, drain connections before closing.