diff --git a/unix/vncserver b/unix/vncserver

index c4d0535..08a9308 100755

--- a/unix/vncserver

+++ b/unix/vncserver

@@ -637,6 +637,7 @@ sub Usage

 	"                 [-geometry <width>x<height>]\n".

 	"                 [-pixelformat rgbNNN|bgrNNN]\n".

 	"                 [-fp <font-path>]\n".

+	"                 [-cc <visual>]\n".

 	"                 [-fg]\n".

 	"                 [-autokill]\n".

 	"                 [-noxstartup]\n".

diff --git a/vncviewer/vncviewer.cxx b/vncviewer/vncviewer.cxx

index a2bc029..6923d0e 100644

--- a/vncviewer/vncviewer.cxx

+++ b/vncviewer/vncviewer.cxx

@@ -338,6 +338,11 @@ static void usage(const char *programName)

           "       %s [parameters] -listen [port] [parameters]\n",

           programName, programName);

   fprintf(stderr,"\n"

+	  "Options:\n\n"

+	  "  -display Xdisplay - Specifies the X display for the viewer window\n"

+	  "  -geometry geometry - Standard X position and sizing specification.\n");

+

+  fprintf(stderr,"\n"

           "Parameters can be turned on with -<param> or off with -<param>=0\n"

           "Parameters which take a value can be specified as "

           "-<param> <value>\n"