diff --git a/docs_src/cors/tutorial001.py b/docs_src/cors/tutorial001.py
index d59ab27ac..24483a17b 100644
--- a/docs_src/cors/tutorial001.py
+++ b/docs_src/cors/tutorial001.py
@@ -11,11 +11,12 @@ origins = [
 ]
 
 app.add_middleware(
-    CORSMiddleware,
-    allow_origins=origins,
-    allow_credentials=True,
-    allow_methods=["*"],
-    allow_headers=["*"],
+    CORSMiddleware(
+        allow_origins=origins,
+        allow_credentials=True,
+        allow_methods=["*"],
+        allow_headers=["*"]
+    )
 )