--- /dev/null
+--- a/configure.ac
++++ b/configure.ac
+@@ -31,7 +31,7 @@ xtlibdir="$(pkg-config --variable=xtlibd
+
+ AC_ARG_WITH([xtlibdir],
+ AS_HELP_STRING([--with-xtlibdir=PATH],
+- [Path where to install Xtables extensions [[autodetect]]]]),
++ [Path where to install Xtables extensions [[autodetect]]]),
+ [xtlibdir="$withval"])
+ AC_MSG_CHECKING([Xtables module directory])
+ AC_MSG_RESULT([$xtlibdir])