diff --git a/src/ol/tilegrid/wmtstilegrid.exports b/src/ol/tilegrid/wmtstilegrid.exports
index bf723f3d17..73991a2dbe 100644
--- a/src/ol/tilegrid/wmtstilegrid.exports
+++ b/src/ol/tilegrid/wmtstilegrid.exports
@@ -1 +1,2 @@
 @exportClass ol.tilegrid.WMTS ol.tilegrid.WMTSOptions
+@exportProperty ol.tilegrid.WMTS.prototype.getMatrixIds