diff -Nur nftables-20140118.orig/configure nftables-20140118/configure
--- nftables-20140118.orig/configure	2014-01-17 22:28:04.000000000 -0700
+++ nftables-20140118/configure	2014-01-18 15:42:10.427000000 -0700
@@ -3310,8 +3310,8 @@
   rm -f conftest.sed
 
 
-# Extract the first word of "docbook2x-man", so it can be a program name with args.
-set dummy docbook2x-man; ac_word=$2
+# Extract the first word of "db2x_docbook2man", so it can be a program name with args.
+set dummy db2x_docbook2man; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
 if test "${ac_cv_prog_CONFIG_MAN+set}" = set; then :
@@ -3350,8 +3350,8 @@
 
 if test "$CONFIG_MAN" != "y"
 then
-	{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: docbookx2-man not found, no manpages will be built" >&5
-$as_echo "$as_me: WARNING: docbookx2-man not found, no manpages will be built" >&2;}
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: db2x_docbook2man not found, no manpages will be built" >&5
+$as_echo "$as_me: WARNING: db2x_docbook2man not found, no manpages will be built" >&2;}
 fi
 
 # Extract the first word of "db2pdf", so it can be a program name with args.
diff -Nur nftables-20140118.orig/configure.ac nftables-20140118/configure.ac
--- nftables-20140118.orig/configure.ac	2014-01-17 22:28:00.000000000 -0700
+++ nftables-20140118/configure.ac	2014-01-18 15:42:24.483000000 -0700
@@ -25,10 +25,10 @@
 AC_PROG_INSTALL
 AC_PROG_SED
 
-AC_CHECK_PROG(CONFIG_MAN, docbook2x-man, y, n)
+AC_CHECK_PROG(CONFIG_MAN, db2x_docbook2man, y, n)
 if test "$CONFIG_MAN" != "y"
 then
-	AC_MSG_WARN([docbookx2-man not found, no manpages will be built])
+	AC_MSG_WARN([db2x_docbook2man not found, no manpages will be built])
 fi
 
 AC_CHECK_PROG(CONFIG_PDF, db2pdf, y, n)
diff -Nur nftables-20140118.orig/Makefile.rules.in nftables-20140118/Makefile.rules.in
--- nftables-20140118.orig/Makefile.rules.in	2014-01-17 22:28:00.000000000 -0700
+++ nftables-20140118/Makefile.rules.in	2014-01-18 15:27:45.759000000 -0700
@@ -37,7 +37,7 @@
 
 %.8:			%.xml	$(makedeps)
 			@echo -e "  MAN\t\t$@"
-			(cd $(SUBDIR); docbook2x-man ../$<)
+			(cd $(SUBDIR); db2x_docbook2man ../$<)
 
 %.pdf:			%.xml	$(makedeps)
 			@echo -e "  PDF\t\t$@"