diff --git a/doc/fdt_bedpostx.html b/doc/fdt_bedpostx.html
index 51a3e5d1032dd0fac3ea0099865034b4e664893a..af2e9978ab9adb7b1ce150c15d3f291704c1fe7d 100644
--- a/doc/fdt_bedpostx.html
+++ b/doc/fdt_bedpostx.html
@@ -78,4 +78,4 @@ You may change some options before running <b>bedpostx</b>, depending on the que
 </ul>
 
 <p><h4>Command line utility</h4>
-<verb>bedpostx &#60;indir&#62; [-f &#60;nfibres&#62;] [-w &#60;weight&#62;] [-b &#60;niter&#62;]</verb>
+<verb>bedpostx &#60;indir&#62; [-n &#60;nfibres&#62;] [-w &#60;weight&#62;] [-b &#60;niter&#62;]</verb>