diff --git a/uvicorn/protocols/http/h11_impl.py b/uvicorn/protocols/http/h11_impl.py
index b7a1dca425..9f6931ec5f 100644
--- a/uvicorn/protocols/http/h11_impl.py
+++ b/uvicorn/protocols/http/h11_impl.py
@@ -92,7 +92,6 @@ def __init__(
         self.server_state = server_state
         self.connections = server_state.connections
         self.tasks = server_state.tasks
-        self.default_headers = server_state.default_headers
 
         # Per-connection state
         self.transport: asyncio.Transport = None  # type: ignore[assignment]
@@ -250,7 +249,7 @@ def handle_events(self) -> None:
                     logger=self.logger,
                     access_logger=self.access_logger,
                     access_log=self.access_log,
-                    default_headers=self.default_headers,
+                    default_headers=self.server_state.default_headers,
                     message_event=asyncio.Event(),
                     on_response=self.on_response_complete,
                 )
diff --git a/uvicorn/protocols/http/httptools_impl.py b/uvicorn/protocols/http/httptools_impl.py
index 62db4a813c..734e8945d3 100644
--- a/uvicorn/protocols/http/httptools_impl.py
+++ b/uvicorn/protocols/http/httptools_impl.py
@@ -90,7 +90,6 @@ def __init__(
         self.server_state = server_state
         self.connections = server_state.connections
         self.tasks = server_state.tasks
-        self.default_headers = server_state.default_headers
 
         # Per-connection state
         self.transport: asyncio.Transport = None  # type: ignore[assignment]
@@ -211,7 +210,7 @@ def handle_websocket_upgrade(self) -> None:
     def send_400_response(self, msg: str) -> None:
 
         content = [STATUS_LINE[400]]
-        for name, value in self.default_headers:
+        for name, value in self.server_state.default_headers:
             content.extend([name, b": ", value, b"\r\n"])
         content.extend(
             [
@@ -286,7 +285,7 @@ def on_headers_complete(self) -> None:
             logger=self.logger,
             access_logger=self.access_logger,
             access_log=self.access_log,
-            default_headers=self.default_headers,
+            default_headers=self.server_state.default_headers,
             message_event=asyncio.Event(),
             expect_100_continue=self.expect_100_continue,
             keep_alive=http_version != "1.0",