diff --git a/exampleSite/config.toml b/exampleSite/config.toml
index dd6c1817a..d9c2c18c0 100755
--- a/exampleSite/config.toml
+++ b/exampleSite/config.toml
@@ -153,7 +153,7 @@ enable = true
 gmap_api = "https://maps.googleapis.com/maps/api/js?key=AIzaSyBu5nZKbeK-WHQ70oqOWo-_4VmwOwKP9YQ"
 map_latitude = "51.5223477"
 map_longitude = "-0.1622023"
-map_marker = "images/marker.png"
+map_marker = "images/marker.png" # marker size 37*55 px
   
 ############################# social site ########################
 [[params.social]]