diff --git a/ase/configure.ac b/ase/configure.ac
index 855a33fe..2e2a787e 100644
--- a/ase/configure.ac
+++ b/ase/configure.ac
@@ -1,6 +1,6 @@
 AC_PREREQ(2.53)
 AC_INIT([xpkit], [deb-0.1.0])
-AC_REVISION([$Revision: 1.38 $])
+AC_REVISION([$Revision: 1.39 $])
 AC_CONFIG_HEADER([xp/config.h])
 
 # Checks for programs.
@@ -74,6 +74,6 @@ AC_CONFIG_FILES([
 	Makefile utils/Makefile xp/Makefile xpp/Makefile
 	xp/bas/Makefile xp/net/Makefile xp/mp/Makefile xp/lisp/Makefile 
 	xp/test/bas/Makefile xp/test/net/Makefile xp/test/lisp/Makefile
-	xpp/bas/Makefile xpp/net/Makefile
+	xpp/bas/Makefile xpp/net/Makefile xpp/sys/Makefile
 	xpp/test/bas/Makefile xpp/test/net/Makefile])
 AC_OUTPUT