diff --git a/js/Helper.js b/js/Helper.js
index e29e3c1..849a7e5 100644
--- a/js/Helper.js
+++ b/js/Helper.js
@@ -69,4 +69,4 @@
 document.write('<script type="text/javascript" src="' + path + 'securityLib/rsapem-1.1.js"></script>');
 document.write('<script type="text/javascript" src="' + path + 'securityLib/rsasign-1.2.js"></script>');
 document.write('<script type="text/javascript" src="' + path + 'securityLib/asn1hex-1.1.js"></script>');
-//document.write('<script type="text/javascript" src="' + path + 'securityLib/x509-1.1.js"></script>');
+document.write('<script type="text/javascript" src="' + path + 'securityLib/x509-1.1.js"></script>');
diff --git a/js/tools/build/make-js.sh b/js/tools/build/make-js.sh
index 025c545..8625daa 100755
--- a/js/tools/build/make-js.sh
+++ b/js/tools/build/make-js.sh
@@ -29,6 +29,7 @@
   ../../securityLib/rsapem-1.1.js \
   ../../securityLib/rsasign-1.2.js \
   ../../securityLib/asn1hex-1.1.js \
+  ../../securityLib/x509-1.1.js \
   ../../securityLib/jsbn.js \
   ../../securityLib/jsbn2.js \
   > ndn-js-uncomp.js