diff --git a/build.py b/build.py
index 5913b7bf..1e27cd5d 100755
--- a/build.py
+++ b/build.py
@@ -179,7 +179,7 @@ if (isNodeJS) {
   document.write('<script>var goog = undefined;</script>');
   // Load fresh Closure Library.
   document.write('<script src="' + window.BLOCKLY_DIR +
-      '/{closure_dir}/{closure_library}/closure/goog/base.js"></script>');
+      '/../closure-library/closure/goog/base.js"></script>');
   document.write('<script>window.BLOCKLY_BOOT();</script>');
 }
 """))