diff --git a/web/zm_html.php b/web/zm_html.php
index 9992d3c74..a2220993f 100644
--- a/web/zm_html.php
+++ b/web/zm_html.php
@@ -2011,7 +2011,7 @@ function configureButton(form,name)
 			if ( $zone[Units] == 'Percent' )
 			{
 ?>
-<area shape="rect" coords="<?= sprintf( "%d,%d,%d,%d", $zone[LoX]*$monitor[Width], $zone[LoY]*$monitor[Height], $zone[HiX]*$monitor[Width], $zone[HiY]*$monitor[Height] ) ?>" href="javascript: newWindow( '<?= $PHP_SELF ?>?view=zone&mid=<?= $mid ?>&zid=<?= $zone[Id] ?>', 'zmZone', <?= $jws['zone']['w'] ?>, <?= $jws['zone']['h'] ?> );">
+<area shape="rect" coords="<?= sprintf( "%d,%d,%d,%d", ($zone[LoX]*$monitor[Width])/100, ($zone[LoY]*$monitor[Height])/100, ($zone[HiX]*$monitor[Width])/100, ($zone[HiY]*$monitor[Height])/100 ) ?>" href="javascript: newWindow( '<?= $PHP_SELF ?>?view=zone&mid=<?= $mid ?>&zid=<?= $zone[Id] ?>', 'zmZone', <?= $jws['zone']['w'] ?>, <?= $jws['zone']['h'] ?> );">
 <?php
 			}
 			else