diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 878a976c..d8ce0119 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -37,6 +37,7 @@ Fixed
 * Minor fix for disconnection event handling in BlueZ backend. Fixes #491.
 * Corrections for the Philips Hue lamp example. Merged #505
 * Fixed BleakClientBlueZDBus.pair() method always returning True. Fixes #503.
+* Fixed write without response on BlueZ < 5.51.
 
 
 `0.11.0`_ (2021-03-17)
diff --git a/bleak/backends/bluezdbus/client.py b/bleak/backends/bluezdbus/client.py
index 46664c65..0dc5a301 100644
--- a/bleak/backends/bluezdbus/client.py
+++ b/bleak/backends/bluezdbus/client.py
@@ -821,7 +821,7 @@ async def write_gatt_char(
                 )
             )
             assert_reply(reply)
-            fd = reply.body[0]
+            fd = reply.unix_fds[0]
             try:
                 os.write(fd, data)
             finally: