diff --git a/configure.in b/configure.in
index da6e6f70b..d2274ce93 100644
--- a/configure.in
+++ b/configure.in
@@ -74,6 +74,9 @@ if test "$have_libesd" = yes; then
 	AC_DEFINE(HAVE_LIBESD)
 fi
 
+dnl session-properties
+AM_CONDITIONAL(SESSION, test "$GNOME_HAVE_SM" = true)
+
 AM_PATH_IMLIB(1.8.2, , [
 echo "ERROR: Needs a system with Imlib 1.8.2 or higher"
 echo "You can obtain it from:"
@@ -94,6 +97,7 @@ capplets/desktop-links/Makefile
 capplets/background-properties/Makefile
 capplets/screensaver-properties/Makefile
 capplets/screensaver-properties/screensaver-desktops/Makefile
+capplets/session-properties/Makefile
 capplets/sound-properties/Makefile
 capplets/bell-properties/Makefile
 capplets/e-conf/Makefile