Index: /branches/release-36/lib/MT/Util.pm
===================================================================
--- /branches/release-36/lib/MT/Util.pm (revision 1912)
+++ /branches/release-36/lib/MT/Util.pm (revision 2086)
@@ -653,5 +653,5 @@
     $s = remove_html($s);         ## remove HTML tags.
     $s =~ s!&[^;\s]+;!!gs;        ## remove HTML entities.
-    $s =~ s![^\w\s]!!gs;          ## remove non-word/space chars.
+    $s =~ s![^\w\s-]!!gs;          ## remove non-word/space chars.
     $s =~ s!\s+!$sep!gs;          ## change space chars to underscores.
     $s;    
@@ -670,5 +670,5 @@
     $s = remove_html($s);         ## remove HTML tags.
     $s =~ s!&[^;\s]+;!!gs;        ## remove HTML entities.
-    $s =~ s![^\w\s]!!gs;          ## remove non-word/space chars.
+    $s =~ s![^\w\s-]!!gs;          ## remove non-word/space chars.
     $s =~ s!\s+!$sep!gs;          ## change space chars to underscores.
     $s;