--- sed-4.1.2.orig/doc/sed.x
+++ sed-4.1.2/doc/sed.x
@@ -297,7 +297,7 @@
.BR ed (1),
.BR grep (1),
.BR tr (1),
-.BR perlre (1),
+.BR regex (7),
sed.info,
any of various books on \*(sd,
.na