diff --git a/src/ol/format/wfs.js b/src/ol/format/wfs.js
index 098021b943..c7147487f0 100644
--- a/src/ol/format/wfs.js
+++ b/src/ol/format/wfs.js
@@ -980,9 +980,10 @@ ol.format.WFS.prototype.writeTransaction = function(inserts, updates, deletes,
   var schemaLocation = ol.format.WFS.SCHEMA_LOCATIONS[version];
   ol.xml.setAttributeNS(node, 'http://www.w3.org/2001/XMLSchema-instance',
       'xsi:schemaLocation', schemaLocation);
+  var featurePrefix = options.featurePrefix ? options.featurePrefix : ol.format.WFS.FEATURE_PREFIX;
   if (inserts) {
     obj = {node: node, 'featureNS': options.featureNS,
-      'featureType': options.featureType, 'featurePrefix': options.featurePrefix,
+      'featureType': options.featureType, 'featurePrefix': featurePrefix,
       'gmlVersion': gmlVersion, 'hasZ': options.hasZ, 'srsName': options.srsName};
     ol.obj.assign(obj, baseObj);
     ol.xml.pushSerializeAndPop(obj,
@@ -992,7 +993,7 @@ ol.format.WFS.prototype.writeTransaction = function(inserts, updates, deletes,
   }
   if (updates) {
     obj = {node: node, 'featureNS': options.featureNS,
-      'featureType': options.featureType, 'featurePrefix': options.featurePrefix,
+      'featureType': options.featureType, 'featurePrefix': featurePrefix,
       'gmlVersion': gmlVersion, 'hasZ': options.hasZ, 'srsName': options.srsName};
     ol.obj.assign(obj, baseObj);
     ol.xml.pushSerializeAndPop(obj,
@@ -1002,7 +1003,7 @@ ol.format.WFS.prototype.writeTransaction = function(inserts, updates, deletes,
   }
   if (deletes) {
     ol.xml.pushSerializeAndPop({node: node, 'featureNS': options.featureNS,
-      'featureType': options.featureType, 'featurePrefix': options.featurePrefix,
+      'featureType': options.featureType, 'featurePrefix': featurePrefix,
       'gmlVersion': gmlVersion, 'srsName': options.srsName},
     ol.format.WFS.TRANSACTION_SERIALIZERS_,
     ol.xml.makeSimpleNodeFactory('Delete'), deletes,
@@ -1010,7 +1011,7 @@ ol.format.WFS.prototype.writeTransaction = function(inserts, updates, deletes,
   }
   if (options.nativeElements) {
     ol.xml.pushSerializeAndPop({node: node, 'featureNS': options.featureNS,
-      'featureType': options.featureType, 'featurePrefix': options.featurePrefix,
+      'featureType': options.featureType, 'featurePrefix': featurePrefix,
       'gmlVersion': gmlVersion, 'srsName': options.srsName},
     ol.format.WFS.TRANSACTION_SERIALIZERS_,
     ol.xml.makeSimpleNodeFactory('Native'), options.nativeElements,
diff --git a/test/spec/ol/format/wfs.test.js b/test/spec/ol/format/wfs.test.js
index 55d3ad751a..269e152b51 100644
--- a/test/spec/ol/format/wfs.test.js
+++ b/test/spec/ol/format/wfs.test.js
@@ -697,6 +697,29 @@ describe('ol.format.WFS', function() {
     });
   });
 
+  describe('when writing out a Transaction request', function() {
+
+    it('creates the correct update with default featurePrefix', function() {
+      var format = new ol.format.WFS();
+      var updateFeature = new ol.Feature();
+      updateFeature.setGeometryName('the_geom');
+      updateFeature.setGeometry(new ol.geom.MultiLineString([[
+        [-12279454, 6741885],
+        [-12064207, 6732101],
+        [-11941908, 6595126],
+        [-12240318, 6507071],
+        [-12416429, 6604910]
+      ]]));
+      updateFeature.setId('FAULTS.4455');
+      var serialized = format.writeTransaction(null, [updateFeature], null, {
+        featureNS: 'http://foo',
+        featureType: 'FAULTS',
+        gmlOptions: {srsName: 'EPSG:900913'}
+      });
+      expect(serialized.firstChild.attributes.getNamedItem('xmlns:feature') !== null).to.equal(true);
+    });
+  });
+
   describe('when writing out a Transaction request', function() {
 
     it('does not create an update if no fid', function() {