diff --git a/src/convnet_export.js b/src/convnet_export.js
index 5d3ffb83..ac35d731 100644
--- a/src/convnet_export.js
+++ b/src/convnet_export.js
@@ -1,7 +1,8 @@
 (function(lib) {
   "use strict";
   if (typeof module === "undefined" || typeof module.exports === "undefined") {
-    window.convnetjs = lib; // in ordinary browser attach library to window
+    // By declaring convnetjs globally, we have already made it available.
+    // Nothing to do here.
   } else {
     module.exports = lib; // in nodejs
   }