diff --git a/lib/less/parser.js b/lib/less/parser.js
index 92a79bdd..4fbb00d6 100644
--- a/lib/less/parser.js
+++ b/lib/less/parser.js
@@ -957,7 +957,7 @@ less.Parser = function Parser(env) {
                 var e, t, c, v;
 
                 c = $(this.combinator);
-                e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) ||
+                e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) ||
                     $('*') || $('&') || $(this.attribute) || $(/^\([^)@]+\)/);
 
                 if (! e) {
diff --git a/test/css/css.css b/test/css/css.css
index 78ea14dc..9451d89f 100644
--- a/test/css/css.css
+++ b/test/css/css.css
@@ -94,3 +94,6 @@ p + h1 {
 @font-face {
   font-family: font-b;
 }
+.æøå {
+  margin: 0;
+}
diff --git a/test/less/css.less b/test/less/css.less
index abcd2c08..d787448e 100644
--- a/test/less/css.less
+++ b/test/less/css.less
@@ -108,3 +108,7 @@ p + h1 {
 
 .def-font(font-a);
 .def-font(font-b);
+
+.æøå {
+  margin: 0;
+}