--- htmlxref.cnf
+++ htmlxref.1.cnf
@@ -365,8 +365,6 @@
 
 GDB = https://sourceware.org/gdb/current/onlinedocs
-gdb		mono	${GDB}/gdb.html
-gdb		node	${GDB}/gdb/
- stabs		mono	${GDB}/stabs.html
- stabs		node	${GDB}/stabs/
+gdb		node	${GDB}/gdb.html/
+ stabs		node	${GDB}/stabs.html/
 
 GDBM = http://www.gnu.org.ua/software/gdbm/manual