diff --git a/share/sgml/freebsd.dsl b/share/sgml/freebsd.dsl
index 100e383044..ca63d411aa 100644
--- a/share/sgml/freebsd.dsl
+++ b/share/sgml/freebsd.dsl
@@ -1,3 +1,5 @@
+<!-- $FreeBSD$ -->
+
 <!DOCTYPE style-sheet PUBLIC "-//James Clark//DTD DSSSL Style Sheet//EN" [
 <!ENTITY % output.html  "IGNORE">
 <!ENTITY % output.print "IGNORE">