diff --git a/rootdir/init.environ.rc.in b/rootdir/init.environ.rc.in
index 927c33d..1f964e3 100644
--- a/rootdir/init.environ.rc.in
+++ b/rootdir/init.environ.rc.in
@@ -9,3 +9,4 @@
     export ASEC_MOUNTPOINT /mnt/asec
     export LOOP_MOUNTPOINT /mnt/obb
     export BOOTCLASSPATH %BOOTCLASSPATH%
+    export LD_PRELOAD libsigchain.so