diff --git a/src/ol/geom/linestring.exports b/src/ol/geom/linestring.exports
index 8de2df528c..a258e088be 100644
--- a/src/ol/geom/linestring.exports
+++ b/src/ol/geom/linestring.exports
@@ -1,5 +1,6 @@
 @exportSymbol ol.geom.LineString
 @exportProperty ol.geom.LineString.prototype.clone
 @exportProperty ol.geom.LineString.prototype.getCoordinates
+@exportProperty ol.geom.LineString.prototype.getLength
 @exportProperty ol.geom.LineString.prototype.getType
 @exportProperty ol.geom.LineString.prototype.setCoordinates