diff --git a/src/ol/geom/simplifygeom.js b/src/ol/geom/simplifygeom.js
index 35183675d3..eb00ba57bf 100644
--- a/src/ol/geom/simplifygeom.js
+++ b/src/ol/geom/simplifygeom.js
@@ -155,6 +155,35 @@ ol.geom.simplify.douglasPeuckers = function(flatCoordinates, offset,
 };
 
 
+/**
+ * @param {Array.<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {Array.<Array.<number>>} endss Endss.
+ * @param {number} stride Stride.
+ * @param {number} squaredTolerance Squared tolerance.
+ * @param {Array.<number>} simplifiedFlatCoordinates Simplified flat
+ *     coordinates.
+ * @param {number} simplifiedOffset Simplified offset.
+ * @param {Array.<Array.<number>>} simplifiedEndss Simplified endss.
+ * @return {number} Simplified offset.
+ */
+ol.geom.simplify.douglasPeuckerss = function(
+    flatCoordinates, offset, endss, stride, squaredTolerance,
+    simplifiedFlatCoordinates, simplifiedOffset, simplifiedEndss) {
+  var i, ii;
+  for (i = 0, ii = endss.length; i < ii; ++i) {
+    var ends = endss[i];
+    var simplifiedEnds = [];
+    simplifiedOffset = ol.geom.simplify.douglasPeuckers(
+        flatCoordinates, offset, ends, stride, squaredTolerance,
+        simplifiedFlatCoordinates, simplifiedOffset, simplifiedEnds);
+    simplifiedEndss.push(simplifiedEnds);
+    offset = ends[ends.length - 1];
+  }
+  return simplifiedOffset;
+};
+
+
 /**
  * @param {Array.<number>} flatCoordinates Flat coordinates.
  * @param {number} offset Offset.