--- groff.man.orig	Sat Sep 22 14:15:26 2007
+++ groff.man	Sat Sep 22 14:16:49 2007
@@ -3952,7 +3952,7 @@
 .
 .TP
 .I [CSTR\~#54]
-.UR http://\:cm.bell-labs.com/\:cm/\:cs/\:54.ps
+.UR http://\:cm.bell-labs.com/\:cm/\:cs/\:cstr/\:54.ps.gz
 Nroff/\:Troff User's Manual by Osanna & Kernighan
 .UE
 \[em] the bible for classical troff.