diff --git a/xenapi-in-rs.sh b/xenapi-in-rs.sh
index c05cad8..0576928 100644
--- a/xenapi-in-rs.sh
+++ b/xenapi-in-rs.sh
@@ -303,7 +303,7 @@ function print_rclocal() {
 mkdir -p /mnt/ubuntu
 mount /dev/sda1 /mnt/ubuntu
 mkdir -p $(dirname $INSTALL_DIR)
-ln -s /mnt/ubuntu${INSTALL_DIR} $INSTALL_DIR || true
+[ -L $INSTALL_DIR ] || ln -s /mnt/ubuntu${INSTALL_DIR} $INSTALL_DIR
 if /bin/bash $THIS_FILE $ADDITIONAL_PARAMETERS >> $LOG_FILE 2>&1 ; then
     reboot
 fi