diff --git a/src/htmlparser/ElementNode.lua b/src/htmlparser/ElementNode.lua
index 11a6c22..602c695 100644
--- a/src/htmlparser/ElementNode.lua
+++ b/src/htmlparser/ElementNode.lua
@@ -155,7 +155,7 @@ local function select(self, s)
       start, pos, switch, type, name, eq, quote = string.find(part,
         "(%(?%)?)" ..         -- switch = a possible ( or ) switching the filter on or off
         "([:%[#.]?)" ..       -- type = a possible :, [, #, or .
-        "(%w+)" ..            -- name = 1 or more alfanumeric chars
+        "([%w-_\\]+)" ..      -- name = 1 or more alfanumeric chars (+ hyphen, reverse slash and uderscore)
         "([|%*~%$!%^]?=?)" .. -- eq = a possible |=, *=, ~=, $=, !=, ^=, or =
         "(['\"]?)",           -- quote = a ' or " delimiting a possible attribute value
         pos + 1
@@ -193,4 +193,4 @@ end
 function ElementNode:select(s) return select(self, s) end
 ElementNode.mt.__call = select
 
-return ElementNode
\ No newline at end of file
+return ElementNode