diff --git a/src/ol/parser/ogc/filterparser_v1.js b/src/ol/parser/ogc/filterparser_v1.js
index 38bd33d2c4..b141c98279 100644
--- a/src/ol/parser/ogc/filterparser_v1.js
+++ b/src/ol/parser/ogc/filterparser_v1.js
@@ -182,7 +182,8 @@ ol.parser.ogc.Filter_v1 = function() {
         var args = [], container = {};
         this.readChildNodes(node, container);
         if (goog.isDef(container.geometry)) {
-          args.push(new ol.expr.Literal(this.gml_.createGeometry(container)));
+          args.push(new ol.expr.Literal(this.gmlParser_.createGeometry(
+              container)));
         } else {
           args = [new ol.expr.Literal(container.bounds[0]),
                 new ol.expr.Literal(container.bounds[1]),
@@ -584,7 +585,7 @@ ol.parser.ogc.Filter_v1.prototype.aggregateLogical_ = function(filters,
  * @return {ol.parser.ogc.GML_v2|ol.parser.ogc.GML_v3}
  */
 ol.parser.ogc.Filter_v1.prototype.getGmlParser = function() {
-  return this.gml_;
+  return this.gmlParser_;
 };
 
 
@@ -594,23 +595,23 @@ ol.parser.ogc.Filter_v1.prototype.getGmlParser = function() {
  * @protected
  */
 ol.parser.ogc.Filter_v1.prototype.setGmlParser = function(gml) {
-  this.gml_ = gml;
-  for (var uri in this.gml_.readers) {
-    for (var key in this.gml_.readers[uri]) {
+  this.gmlParser_ = gml;
+  for (var uri in this.gmlParser_.readers) {
+    for (var key in this.gmlParser_.readers[uri]) {
       if (!goog.isDef(this.readers[uri])) {
         this.readers[uri] = {};
       }
-      this.readers[uri][key] = goog.bind(this.gml_.readers[uri][key],
-          this.gml_);
+      this.readers[uri][key] = goog.bind(this.gmlParser_.readers[uri][key],
+          this.gmlParser_);
     }
   }
-  for (uri in this.gml_.writers) {
-    for (key in this.gml_.writers[uri]) {
+  for (uri in this.gmlParser_.writers) {
+    for (key in this.gmlParser_.writers[uri]) {
       if (!goog.isDef(this.writers[uri])) {
         this.writers[uri] = {};
       }
-      this.writers[uri][key] = goog.bind(this.gml_.writers[uri][key],
-          this.gml_);
+      this.writers[uri][key] = goog.bind(this.gmlParser_.writers[uri][key],
+          this.gmlParser_);
     }
   }
 };
diff --git a/src/ol/parser/ogc/filterparser_v1_0_0.js b/src/ol/parser/ogc/filterparser_v1_0_0.js
index 0b14d01eb6..eecebe2504 100644
--- a/src/ol/parser/ogc/filterparser_v1_0_0.js
+++ b/src/ol/parser/ogc/filterparser_v1_0_0.js
@@ -169,7 +169,7 @@ ol.parser.ogc.Filter_v1_0_0.prototype.writeSpatial_ = function(filter, name) {
     var child;
     if (geom !== null) {
       child = this.writeNode('_geometry', {value: geom},
-          this.gml_.featureNS).firstChild;
+          this.gmlParser_.featureNS).firstChild;
     } else if (bbox.length === 4) {
       child = this.writeNode('Box', bbox,
           'http://www.opengis.net/gml');
diff --git a/src/ol/parser/ogc/filterparser_v1_1_0.js b/src/ol/parser/ogc/filterparser_v1_1_0.js
index 77423733fa..42c8388fdc 100644
--- a/src/ol/parser/ogc/filterparser_v1_1_0.js
+++ b/src/ol/parser/ogc/filterparser_v1_1_0.js
@@ -225,7 +225,7 @@ ol.parser.ogc.Filter_v1_1_0.prototype.writeSpatial_ = function(filter, name) {
     var child;
     if (geom !== null) {
       child = this.writeNode('_geometry', {value: geom},
-          this.gml_.featureNS).firstChild;
+          this.gmlParser_.featureNS).firstChild;
     } else if (bbox.length === 4) {
       child = this.writeNode('Envelope', bbox,
           'http://www.opengis.net/gml');