1 files changed, 4 insertions, 3 deletions
diff --git a/lib/PublicInbox/OverIdx.pm b/lib/PublicInbox/OverIdx.pm
index 2e3d4534..0c8a4d9e 100644
--- a/lib/PublicInbox/OverIdx.pm
+++ b/lib/PublicInbox/OverIdx.pm
@@ -243,12 +243,13 @@ sub link_refs {
          $tid;
  }
  
-# normalize subjects so they are suitable as pathnames for URLs
-# XXX: consider for removal
+# normalize subjects somewhat, they used to be ASCII-only but now
+# we use \w for UTF-8 support.  We may still drop it entirely and
+# rely on Xapian for subject matches...
  sub subject_path ($) {
          my ($subj) = @_;
          $subj = subject_normalized($subj);
-        $subj =~ s![^a-zA-Z0-9_\.~/\-]+!_!g;
+        $subj =~ s![^\w\.~/\-]+!_!g;
          lc($subj);
  }