--- a/toolkit/content/minimal-xul.css
+++ b/toolkit/content/minimal-xul.css
@@ -62,17 +62,17 @@ label.text-link, label[onclick] {
   -moz-binding: url("chrome://global/content/bindings/text.xml#text-link");
   -moz-user-focus: normal;
 }
 
 label[control], label.radio-label, label.checkbox-label, label.toolbarbutton-multiline-text {
   -moz-binding: url("chrome://global/content/bindings/text.xml#label-control");
 }
 
-html|span.accesskey {
+label html|span.accesskey {
   text-decoration: underline;
 }
 
 /********** resizer **********/
 
 resizer {
   -moz-binding: url("chrome://global/content/bindings/resizer.xml#resizer");
   position: relative;