diff --git a/FilterCampsites.json b/FilterCampsites.json
index b8f5a02..de39f07 100644
--- a/FilterCampsites.json
+++ b/FilterCampsites.json
@@ -4,6 +4,7 @@
         "10": "nwr[tourism=camp_site]"
     },
     "feature": {
-        "markerSign": "{{ default('<i class=\\\"far fa-campground\\\"></i>')|raw }}"
+        "markerSign": "{{ default('<i class=\\\"far fa-campground\\\"></i>')|raw }}",
+        "markerSymbol": "\"\""
     }
 }