diff --git a/Layout/default/Building/Index.php b/Layout/default/Building/Index.php
index 76b468b26..b0cf93ebe 100644
--- a/Layout/default/Building/Index.php
+++ b/Layout/default/Building/Index.php
@@ -433,6 +433,9 @@
     // draw markers and calculate center position
     var all_coords = [];
     buildings.forEach(function(building) {
+      if(!building.gps_lat || !building.gps_long) {
+        return;
+      }
       var gps = [building.gps_lat, building.gps_long];
       all_coords.push(gps);
       var marker = L.marker(gps).addTo(buildingMap);