diff --git a/underscore.js b/underscore.js
index c3fe0a53a..2e27c26ac 100644
--- a/underscore.js
+++ b/underscore.js
@@ -56,22 +56,17 @@
       exports = module.exports = _;
     }
     exports._ = _;
-  } else {
-    // Exported as a string, for Closure Compiler "advanced" mode.
-    root['_'] = _;
-
+  } else if (typeof define === 'function' && define.amd) {
     // Register as a module with AMD. Use a named module since underscore
     // can be used in optimization schemes that do not understand anonymous
     // modules, and the if it is used on a page with an AMD loader, a load
-    // error could occur. This work is done in addition to exporting a global
-    // on root since the web page could use an AMD loader to load the module
-    // but still want to use the global reference. Test pages are a good
-    // example.
-    if (typeof define === 'function' && define.amd) {
-      define('underscore', function() {
-        return _;
-      });
-    }
+    // error could occur.
+    define('underscore', function() {
+      return _;
+    });
+  } else {
+    // Exported as a string, for Closure Compiler "advanced" mode.
+    root['_'] = _;
   }
 
   // Current version.