diff --git a/lib/ace/mode/lsl_highlight_rules.js b/lib/ace/mode/lsl_highlight_rules.js
index eb42fa28..c638d811 100644
--- a/lib/ace/mode/lsl_highlight_rules.js
+++ b/lib/ace/mode/lsl_highlight_rules.js
@@ -285,55 +285,55 @@ function LSLHighlightRules() {
         "start" : [
             {
                 token : "comment.line.double-slash.lsl",
-                regex : /\/\/.*$/
+                regex : "\\/\\/.*$"
             }, {
                 token : "comment.block.lsl",
-                regex : /\/\*/,
+                regex : "\\/\\*",
                 next : "comment"
             }, {
                 token : "string.quoted.double.lsl",
                 start : '"',
                 end : '"',
                 next : [
-                    { token : "constant.language.escape.lsl", regex : /\[tn"\]/ }
+                    { token : "constant.language.escape.lsl", regex : "\\[tn\"\\]" }
                 ]
             }, {
                 token : "constant.numeric.lsl",
-                regex : /(0[xX][0-9a-fA-F]+|[+-]?[0-9]+(?:(?:\.[0-9]*)?(?:[eE][+-]?[0-9]+)?)?)\b/
+                regex : "(0[xX][0-9a-fA-F]+|[+-]?[0-9]+(?:(?:\\.[0-9]*)?(?:[eE][+-]?[0-9]+)?)?)\\b"
             }, {
                 token : "entity.name.state.lsl",
-                regex : /\b((state)\s+\w+|default)\b/
+                regex : "\\b((state)\\s+\\w+|default)\\b"
             }, {
                 token : keywordMapper,
-                regex : /\b[a-zA-Z_]\w*\b/
+                regex : "\\b[a-zA-Z_][a-zA-Z0-9_]*\\b"
             }, {
                 token : "support.function.user-defined.lsl",
-                regex : /\b([a-zA-Z0-9_]\w*)(?=\(.*?\))/
+                regex : /\b([a-zA-Z_]\w*)(?=\(.*?\))/
             }, {
                 token : "keyword.operator.lsl",
-                regex : /\+\+|\-\-|<<|>>|&&?|\|\|?|\^|~|[!%<>=*+\-\/]=?/
+                regex : "\\+\\+|\\-\\-|<<|>>|&&?|\\|\\|?|\\^|~|[!%<>=*+\\-\\/]=?"
             }, {
                 token : "punctuation.operator.lsl",
-                regex : /\,|\;/
+                regex : "\\,|\\;"
             }, {
                 token : "paren.lparen.lsl",
-                regex : /[\[\(\{]/
+                regex : "[\\[\\(\\{]"
             }, {
                 token : "paren.rparen.lsl",
-                regex : /[\]\)\}]/
+                regex : "[\\]\\)\\}]"
             }, {
                 token : "text.lsl",
-                regex : /\s+/
+                regex : "\\s+"
             }
         ],
         "comment" : [
             {
                 token : "comment.block.lsl",
-                regex : /.*?\*\//,
+                regex : ".*?\\*\\/",
                 next : "start"
             }, {
                 token : "comment.block.lsl",
-                regex : /.+/
+                regex : ".+"
             }
         ]
     };