diff --git a/man/syslogd.8 b/man/syslogd.8
index 9a2376f..30169d4 100644
--- a/man/syslogd.8
+++ b/man/syslogd.8
@@ -198,7 +198,7 @@ entirely.
 Note, the
 .Ql -- MARK --
 messages are only written when a log file has been without activity in
-.Ar interval / 2
+.Ql Cm interval / 2
 minutes.
 .It Fl n
 Disable DNS query for every request.