Index: category-template.php
===================================================================
--- category-template.php	(revision 17488)
+++ category-template.php	(working copy)
@@ -334,7 +334,7 @@
 		$tab_index_attribute = " tabindex=\"$tab_index\"";
 
 	$categories = get_terms( $taxonomy, $r );
-	$name = esc_attr( $name );
+	$name = ( $taxonomy = 'category' ) ? $taxonomy : esc_attr( $name );
 	$class = esc_attr( $class );
 	$id = $id ? esc_attr( $id ) : $name;