diff --git a/configure.ac b/configure.ac
index 66d041c..4d8a370 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2,7 +2,7 @@
 AC_INIT([lxsession],[0.4.9.2],[],[lxsession])
 
 # Autotols programs
-AM_INIT_AUTOMAKE([1.11.1 -Wall -Werror foreign])
+AM_INIT_AUTOMAKE([1.11.1 -Wall -Werror foreign subdir-objects])
 AC_PREREQ([2.69])
 IT_PROG_INTLTOOL([0.40.0],[no-xml])