diff --git a/src/tokenize.js b/src/tokenize.js
index fbe25a01f2..9d09561bce 100755
--- a/src/tokenize.js
+++ b/src/tokenize.js
@@ -30,6 +30,7 @@ export class Token {
 const pp = Parser.prototype;
 
 // Are we running under Rhino?
+/* global Packages */
 const isRhino = typeof Packages === "object" && Object.prototype.toString.call(Packages) === "[object JavaPackage]";
 
 // Move to the next token
diff --git a/test/mocha.opts b/test/mocha.opts
deleted file mode 100644
index 850a6c2f64..0000000000
--- a/test/mocha.opts
+++ /dev/null
@@ -1,2 +0,0 @@
---reporter dot
---ui tdd