diff --git a/css-path.js b/css-path.js
index 4b2b3c9..40017e0 100644
--- a/css-path.js
+++ b/css-path.js
@@ -35,7 +35,8 @@ var trim = require('trim')
         , id = elm.getAttribute('id')
 
       if (id) {
-        list.unshift(tag + '#' + trim(id))
+        var escapeSelector = function(selector) {return "".replace.call(selector,/(^[^_a-zA-Z\u00a0-\uffff]|[^-_a-zA-Z0-9\u00a0-\uffff])/g, "\\$1")};
+        list.unshift(tag + '#' + escapeSelector(trim(id)))
         return list
       }
 
@@ -57,4 +58,4 @@ var trim = require('trim')
 
 module.exports = function (elm, rootNode) {
   return path(elm, rootNode, []).join(' > ')
-}
\ No newline at end of file
+}