diff --git a/ground/views/point.php b/ground/views/point.php
index e330a3e..1d988a1 100644
--- a/ground/views/point.php
+++ b/ground/views/point.php
@@ -48,7 +48,7 @@
 									<?php endforeach; ?>
 								<?php endif; ?>
 								<span>
-									<div id="map" style="width: 100%; height: 100%; position: static; display: block;"></div>
+									<div id="map" style="width: 100%; height: 100%; position: static; display: block; -webkit-filter: grayscale(40%);"></div>
 								</span>
 							</div>
 						</td>