diff --git a/contrib/groff/tmac/doc-common b/contrib/groff/tmac/doc-common
index 958a4f06e32e..c1adb70a5b74 100644
--- a/contrib/groff/tmac/doc-common
+++ b/contrib/groff/tmac/doc-common
@@ -30,7 +30,7 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     @(#)doc-common	8.1 (Berkeley) 06/08/93
-.\"	$FreeBSD$
+.\" $FreeBSD$
 .\"
 .\"     %beginstrip%
 .
@@ -419,6 +419,10 @@
 .ds doc-operating-system-FreeBSD-4.3     4.3
 .ds doc-operating-system-FreeBSD-4.4     4.4
 .ds doc-operating-system-FreeBSD-4.5     4.5
+.ds doc-operating-system-FreeBSD-4.6     4.6
+.ds doc-operating-system-FreeBSD-4.6.2   4.6.2
+.ds doc-operating-system-FreeBSD-4.7     4.7
+.ds doc-operating-system-FreeBSD-4.8     4.8
 .ds doc-operating-system-FreeBSD-5.0     5.0
 .
 .de Os
diff --git a/gnu/usr.bin/groff/tmac/mdoc.local b/gnu/usr.bin/groff/tmac/mdoc.local
index dae2d9ccb32e..d340d980cc6d 100644
--- a/gnu/usr.bin/groff/tmac/mdoc.local
+++ b/gnu/usr.bin/groff/tmac/mdoc.local
@@ -53,12 +53,6 @@
 .\" Default .Os value
 .ds doc-operating-system FreeBSD\~5.0
 .
-.\" FreeBSD releases not found in doc-common
-.ds doc-operating-system-FreeBSD-4.6    4.6
-.ds doc-operating-system-FreeBSD-4.6.2  4.6.2
-.ds doc-operating-system-FreeBSD-4.7    4.7
-.ds doc-operating-system-FreeBSD-4.8    4.8
-.
 .ec
 .
 .\" Locale support