diff --git a/doc/manpages/proxy-server.conf.5 b/doc/manpages/proxy-server.conf.5
index be0ef95092..e8007919a7 100644
--- a/doc/manpages/proxy-server.conf.5
+++ b/doc/manpages/proxy-server.conf.5
@@ -974,9 +974,9 @@ Cache timeout in seconds to send memcached for account existence. The default is
 .IP \fBrecheck_container_existence\fR
 Cache timeout in seconds to send memcached for container existence. The default is 60 seconds.
 .IP \fBobject_chunk_size\fR
-Chunk size to read from object servers. The default is 8192.
+Chunk size to read from object servers. The default is 65536.
 .IP \fBclient_chunk_size\fR
-Chunk size to read from clients. The default is 8192.
+Chunk size to read from clients. The default is 65536.
 .IP \fBnode_timeout\fR
 Request timeout to external services. The default is 10 seconds.
 .IP \fBrecoverable_node_timeout\fR