diff --git a/tools/file_packager.py b/tools/file_packager.py
index ca934f7f4f947..8f13fb8272bc7 100755
--- a/tools/file_packager.py
+++ b/tools/file_packager.py
@@ -719,7 +719,7 @@ def was_seen(name):
     node_support_code = ''
     if support_node:
       node_support_code = r'''
-        if (typeof process === 'object') {
+        if (typeof process === 'object' && typeof process.versions === 'object' && typeof process.versions.node === 'string') {
           require('fs').readFile(packageName, function(err, contents) {
             if (err) {
               errback(err);