diff --git a/jslint.js b/jslint.js
index b666e7ab9..55885386b 100644
--- a/jslint.js
+++ b/jslint.js
@@ -1,5 +1,5 @@
 // jslint.js
-// 2015-06-18
+// 2015-06-22
 // Copyright (c) 2015 Douglas Crockford  (www.JSLint.com)
 
 // Permission is hereby granted, free of charge, to any person obtaining a copy
@@ -382,7 +382,7 @@ var jslint = (function JSLint() {
         rx_directive = /^(jslint|property|global)\s*(.*)$/,
         rx_directive_part = /^([a-zA-Z$_][a-zA-Z0-9$_]*)\s*(?::\s*(true|false|[0-9]+)\s*)?(?:,\s*)?(.*)$/,
 // token (sorry it is so long)
-        rx_token = /^((\s+)|([a-zA-Z_$][a-zA-Z0-9_$]*)|[(){}\[\]\?,:;'"~`]|=(?:==?|>)?|\.+|\/[*\/]?|\*[\/=]?|\+(?:=|\++)?|-(?:=|-+)?|[\^%]=?|&[&=]?|\|[\|=]?|>{1,3}=?|<<?=?|!={0,2}|(0|[1-9][0-9]*))(.*)$/,
+        rx_token = /^((\s+)|([a-zA-Z_$][a-zA-Z0-9_$]*)|[(){}\[\]\?,:;'"~`]|=(?:==?|>)?|\.+|\/[=*\/]?|\*[\/=]?|\+(?:=|\++)?|-(?:=|-+)?|[\^%]=?|&[&=]?|\|[\|=]?|>{1,3}=?|<<?=?|!={0,2}|(0|[1-9][0-9]*))(.*)$/,
         rx_digits = /^([0-9]+)(.*)$/,
         rx_hexs = /^([0-9a-fA-F]+)(.*)$/,
         rx_octals = /^([0-7]+)(.*)$/,
@@ -2467,6 +2467,9 @@ var jslint = (function JSLint() {
         advance(']');
         return the_token;
     });
+    prefix('/=', function () {
+        stop('expected_a_b', token, '/\\=', '/=');
+    });
     prefix('=>', function () {
         return stop('expected_a_before_b', token, '()', '=>');
     });
@@ -4401,7 +4404,7 @@ var jslint = (function JSLint() {
             }
         }
         return {
-            edition: "2015-06-18",
+            edition: "2015-06-22",
             functions: functions,
             global: global,
             id: "(JSLint)",