diff --git a/docs/sanic/testing.md b/docs/sanic/testing.md
index 0aca9184..00a604bf 100644
--- a/docs/sanic/testing.md
+++ b/docs/sanic/testing.md
@@ -20,7 +20,7 @@ def test_index_put_not_allowed():
     assert response.status == 405
 ```
 
-Internally, each time you call one of the `test_client` methods, the Sanic app is run at `127.0.01:42101` and 
+Internally, each time you call one of the `test_client` methods, the Sanic app is run at `127.0.0.1:42101` and 
 your test request is executed against your application, using `aiohttp`. 
 
 The `test_client` methods accept the following arguments and keyword arguments: