1 files changed, 1 insertions, 1 deletions
diff --git a/HACKING b/HACKING
index 7556f42..86adf29 100644
--- a/HACKING
+++ b/HACKING
@@ -9,7 +9,7 @@ Please wrap documentation at 72 characters-per-line or less (long URLs
  are exempt) so it is comfortably readable from terminals.
  
  When referencing mailing list posts, use
-"https://bogomips.org/kgio-public/<MESSAGE-ID>/" if possible since the
+<tt>https://bogomips.org/kgio-public/$MESSAGE_ID/</tt> if possible
  Message-ID remains searchable even if the archive becomes unavailable.
  
  === Code Compatibility