diff --git a/nixos/doc/manual/man-nixos-rebuild.xml b/nixos/doc/manual/man-nixos-rebuild.xml
index a5ea81bcdab4..2e1069828c1b 100644
--- a/nixos/doc/manual/man-nixos-rebuild.xml
+++ b/nixos/doc/manual/man-nixos-rebuild.xml
@@ -91,6 +91,10 @@
     <option>--flake</option> <replaceable>flake-uri</replaceable>
    </arg>
 
+   <arg>
+    <option>--override-input</option> <replaceable>input-name</replaceable> <replaceable>flake-uri</replaceable>
+   </arg>
+
    <sbr />
 
    <arg>