diff --git a/externs/closure-compiler.js b/externs/closure-compiler.js
index 7894661c23..6fee440810 100644
--- a/externs/closure-compiler.js
+++ b/externs/closure-compiler.js
@@ -15,3 +15,5 @@
  * @see http://www.w3.org/TR/pointerevents/#the-touch-action-css-property
  */
 CSSProperties.prototype.touchAction;
+
+var global;
diff --git a/src/ol/ol.js b/src/ol/ol.js
index 211d0198ff..85eef506d2 100644
--- a/src/ol/ol.js
+++ b/src/ol/ol.js
@@ -275,4 +275,13 @@ ol.inherits = function(childCtor, parentCtor) {
 ol.nullFunction = function() {};
 
 
-ol.global = Function('return this')();
+/**
+ * @see https://github.com/tc39/proposal-global
+ */
+if (typeof window !== 'undefined') {
+  ol.global = window;
+} else if (typeof global !== 'undefined') {
+  ol.global = global;
+} else if (typeof self !== 'undefined') {
+  ol.global = self;
+}