diff --git a/src/ol/render/webgl/webglreplay.js b/src/ol/render/webgl/webglreplay.js
index c7fe9673f2..4f309d0fd7 100644
--- a/src/ol/render/webgl/webglreplay.js
+++ b/src/ol/render/webgl/webglreplay.js
@@ -789,7 +789,7 @@ ol.render.webgl.ImageReplay.prototype.drawHitDetectionReplayAll_ =
 ol.render.webgl.ImageReplay.prototype.drawHitDetectionReplayOneByOne_ =
     function(gl, context, featureCallback, elementType, elementSize,
         opt_hitExtent) {
-  var i, groupStart, groupEnd, numItems, featureInfo, start, end, feature;
+  var i, groupStart, numItems, start, end, feature;
   var featureIndex = this.startIndices_.length - 1;
 
   for (i = this.hitDetectionTextures_.length - 1; i >= 0; --i) {
diff --git a/src/ol/renderer/webgl/webglmaprenderer.js b/src/ol/renderer/webgl/webglmaprenderer.js
index 602d1c7415..fa9425b647 100644
--- a/src/ol/renderer/webgl/webglmaprenderer.js
+++ b/src/ol/renderer/webgl/webglmaprenderer.js
@@ -605,7 +605,7 @@ ol.renderer.webgl.Map.prototype.forEachFeatureAtPixel =
  * @inheritDoc
  */
 ol.renderer.webgl.Map.prototype.hasFeatureAtPixel =
-    function(coordinate, frameState, layerFilter, thisArg2) {
+    function(coordinate, frameState, layerFilter, thisArg) {
   var hasFeature = false;
 
   if (this.getGL().isContextLost()) {
@@ -636,7 +636,7 @@ ol.renderer.webgl.Map.prototype.hasFeatureAtPixel =
     var layerState = layerStates[i];
     var layer = layerState.layer;
     if (ol.layer.Layer.visibleAtResolution(layerState, viewState.resolution) &&
-        layerFilter.call(thisArg2, layer)) {
+        layerFilter.call(thisArg, layer)) {
       var layerRenderer = this.getLayerRenderer(layer);
       hasFeature = layerRenderer.hasFeatureAtPixel(coordinate, frameState);
       if (hasFeature) {