diff --git a/jslint.js b/jslint.js
index 36508cd47..44ee2e6c2 100644
--- a/jslint.js
+++ b/jslint.js
@@ -941,7 +941,7 @@ var JSLINT = (function () {
         sx = /^\s*([{}:#%.=,>+\[\]@()"';]|[*$\^~]=|[a-zA-Z_][a-zA-Z0-9_\-]*|[0-9]+|<\/|\/\*)/,
         ssx = /^\s*([@#!"'};:\-%.=,+\[\]()*_]|[a-zA-Z][a-zA-Z0-9._\-]*|\/\*?|\d+(?:\.\d+)?|<\/)/,
 // comment todo
-        tox = /^\s*to\s*do/i,
+        tox = /^\s*to\s*do(?:\W|$)/i,
 // token
         tx = /^\s*([(){}\[\]\?.,:;'"~#@`]|={1,3}|\/(\*(jslint|properties|property|members?|globals?)?|=|\/)?|\*[\/=]?|\+(?:=|\++)?|-(?:=|-+)?|[\^%]=?|&[&=]?|\|[|=]?|>{1,3}=?|<(?:[\/=!]|\!(\[|--)?|<=?)?|\!={0,2}|[a-zA-Z_$][a-zA-Z0-9_$]*|[0-9]+(?:[xX][0-9a-fA-F]+|\.[0-9]*)?(?:[eE][+\-]?[0-9]+)?)/,
 // url badness