diff --git a/nixos/doc/manual/installation/installing.xml b/nixos/doc/manual/installation/installing.xml
index 02f6bd6bed4..f03b9443d23 100644
--- a/nixos/doc/manual/installation/installing.xml
+++ b/nixos/doc/manual/installation/installing.xml
@@ -46,6 +46,12 @@
    to increase the font size.
   </para>
 
+  <para>
+    To install over a serial port connect with <literal>115200n8</literal>
+    (e.g. <command>picocom -b 115200 /dev/ttyUSB0</command>). When the
+    bootloader lists boot entries, select the serial console boot entry.
+  </para>
+
   <section xml:id="sec-installation-booting-networking">
    <title>Networking in the installer</title>