diff --git a/share/man/man5/style.mdoc.5 b/share/man/man5/style.mdoc.5
--- a/share/man/man5/style.mdoc.5
+++ b/share/man/man5/style.mdoc.5
@@ -34,6 +34,10 @@
 This file specifies the preferred style for manual pages in the
 .Fx
 source tree.
+Please wrap
+.Xr roff 7
+lines at 72 characters so that they look nice with the stable tooling
+in the base system.
 .Ss Code Examples
 .Bl -dash -width ""
 .It