- forgot to include the Config.in

package/Config.in

@@ -166,6 +166,7 @@ source "package/openvpn/Config.in"
 source "package/openswan/Config.in"
 source "package/portmap/Config.in"
 source "package/pppd/Config.in"
+source "package/pptp-linux/Config.in"
 source "package/proftpd/Config.in"
 source "package/quagga/Config.in"
 source "package/rsync/Config.in"