diff --git a/unix/vncserver.man b/unix/vncserver.man
index 37fe315..fd7e93a 100644
--- a/unix/vncserver.man
+++ b/unix/vncserver.man
@@ -17,6 +17,8 @@
 .RB [ \-fg ]
 .RB [ \-autokill ]
 .RB [ \-noxstartup ]
+.RB [ \-xstartup 
+.IR script ]
 .RI [ Xvnc-options... ]
 .br
 .BI "vncserver \-kill :" display#
@@ -129,6 +131,11 @@
 option allows you to manually start a window manager in your TigerVNC session.
 .
 .TP
+.B \-xstartup \fIscript\fP
+Run a custom startup script, instead of %HOME/.vnc/xstartup, after launching
+Xvnc. This is useful to run full-screen applications.
+.
+.TP
 .B \-list
 Lists all VNC desktops started by vncserver.