diff --git a/src/map/TileLoader.js b/src/map/TileLoader.js
index cd482ce..3ba27ce 100644
--- a/src/map/TileLoader.js
+++ b/src/map/TileLoader.js
@@ -61,7 +61,7 @@ export class TileLoader {
         return new Promise((resolve, reject) => {
             this.fileLoader.load(tileUrl + '?' + this.tileCacheHash,
                 json => {
-                    let geometryJson = json.tileGeometry;
+                    let geometryJson = json.tileGeometry || {};
                     if (!geometryJson.type || geometryJson.type !== 'BufferGeometry'){
                         reject({status: "empty"});
                         return;