1 files changed, 6 insertions, 7 deletions
diff --git a/mdoc.7 b/mdoc.7
index 14b996e1..c6c54147 100644
--- a/mdoc.7
+++ b/mdoc.7
@@ -1185,13 +1185,12 @@ See also
 and
 .Sx \&Dl .
 .Ss \&Db
-Switch debugging mode.
-Its syntax is as follows:
-.Pp
-.D1 Pf \. Sx \&Db Cm on | off
-.Pp
-This macro is ignored by
-.Xr mandoc 1 .
+This macro is obsolete.
+No replacement is needed.
+It is ignored by
+.Xr mandoc 1
+and groff including its arguments.
+It was formerly used to toggle a debugging mode.
 .Ss \&Dc
 Close a
 .Sx \&Do