diff --git a/lodash.src.js b/lodash.src.js
index e8b4db648..a97783930 100644
--- a/lodash.src.js
+++ b/lodash.src.js
@@ -268,8 +268,11 @@
   /** Detect free variable `global` from Node.js. */
   var freeGlobal = freeExports && freeModule && typeof global == 'object' && global;
 
+  /** Detect free variable `self`. */
+  var freeSelf = objectTypes[typeof self] && self && self.Object && self;
+
   /** Detect free variable `window`. */
-  var freeWindow = objectTypes[typeof window] && window;
+  var freeWindow = objectTypes[typeof window] && window && window.Object && window;
 
   /** Detect the popular CommonJS extension `module.exports`. */
   var moduleExports = freeModule && freeModule.exports === freeExports && freeExports;
@@ -280,7 +283,7 @@
    * The `this` value is used if it is the global object to avoid Greasemonkey's
    * restricted `window` object, otherwise the `window` object is used.
    */
-  var root = freeGlobal || ((freeWindow !== (this && this.window)) && freeWindow) || this;
+  var root = freeGlobal || ((freeWindow !== (this && this.window)) && freeWindow) || freeSelf || this;
 
   /*--------------------------------------------------------------------------*/