diff --git a/lib/vectortilefeature.js b/lib/vectortilefeature.js
index 740c66e..f8cdfc2 100644
--- a/lib/vectortilefeature.js
+++ b/lib/vectortilefeature.js
@@ -155,7 +155,7 @@ VectorTileFeature.prototype.toGeoJSON = function(x, y, z) {
         type = 'MultiLineString';
     }
 
-    return {
+    var result = {
         type: "Feature",
         geometry: {
             type: type,
@@ -163,4 +163,10 @@ VectorTileFeature.prototype.toGeoJSON = function(x, y, z) {
         },
         properties: this.properties
     };
+
+    if ('_id' in this) {
+        result.id = this._id;
+    }
+
+    return result;
 };
diff --git a/test/parse.test.js b/test/parse.test.js
index 6a697ed..66727fc 100644
--- a/test/parse.test.js
+++ b/test/parse.test.js
@@ -72,6 +72,7 @@ test('parsing vector tiles', function(t) {
 
         var point = tile.layers.poi_label.feature(11).toGeoJSON(8801, 5371, 14);
         t.deepEqual(point.type, 'Feature');
+        t.deepEqual(point.id, 3000003150561);
         t.deepEqual(point.properties, {
             localrank: 1,
             maki: 'park',