diff --git a/src/ol/geom/abstractcollection.js b/src/ol/geom/abstractcollection.js
index b5ce4ee588..800c5d47ff 100644
--- a/src/ol/geom/abstractcollection.js
+++ b/src/ol/geom/abstractcollection.js
@@ -40,9 +40,9 @@ goog.inherits(ol.geom.AbstractCollection, ol.geom.Geometry);
 ol.geom.AbstractCollection.prototype.getBounds = function() {
   if (goog.isNull(this.bounds)) {
     var minX,
-        minY = minX = Number.POSITIVE_INFINITY,
+        minY = minX = Infinity,
         maxX,
-        maxY = maxX = Number.NEGATIVE_INFINITY,
+        maxY = maxX = -Infinity,
         components = this.components,
         len = components.length,
         bounds, i;
diff --git a/src/ol/parser/ogc/wmscapabilities_v1_1.js b/src/ol/parser/ogc/wmscapabilities_v1_1.js
index 927e76b9d0..ab8bfd3a8f 100644
--- a/src/ol/parser/ogc/wmscapabilities_v1_1.js
+++ b/src/ol/parser/ogc/wmscapabilities_v1_1.js
@@ -66,7 +66,7 @@ ol.parser.ogc.WMSCapabilities_v1_1 = function() {
       if (min !== 0) {
         obj['maxScale'] = parseFloat((min / rad2) * ipm * dpi);
       }
-      if (max != Number.POSITIVE_INFINITY) {
+      if (max != Infinity) {
         obj['minScale'] = parseFloat((max / rad2) * ipm * dpi);
       }
     },
diff --git a/src/ol/structs/rtree.js b/src/ol/structs/rtree.js
index 2f316cb095..8bf4d9e48f 100644
--- a/src/ol/structs/rtree.js
+++ b/src/ol/structs/rtree.js
@@ -152,8 +152,7 @@ ol.structs.RTree = function() {
    * @type {ol.structs.RTreeNode_}
    */
   this.root_ = new ol.structs.RTreeNode_(
-      Number.NEGATIVE_INFINITY, Number.NEGATIVE_INFINITY,
-      Number.POSITIVE_INFINITY, Number.POSITIVE_INFINITY, null, 0);
+      -Infinity, -Infinity, Infinity, Infinity, null, 0);
 
 };