diff --git a/adafruit_httpserver.py b/adafruit_httpserver.py
index 5b5042d..ff2f97d 100644
--- a/adafruit_httpserver.py
+++ b/adafruit_httpserver.py
@@ -247,7 +247,8 @@ def _send_file_response(self, conn, filename, root, file_length):
             while bytes_read := file.read(2048):
                 self._send_bytes(conn, bytes_read)
 
-    def _send_bytes(self, conn, buf):
+    @staticmethod
+    def _send_bytes(conn, buf):
         bytes_sent = 0
         bytes_to_send = len(buf)
         view = memoryview(buf)