use full path for devstack dir
diff --git a/build_lxc.sh b/build_lxc.sh
index babc30c..212261a 100755
--- a/build_lxc.sh
+++ b/build_lxc.sh
@@ -134,7 +134,7 @@
 sudo apt-get update
 sudo apt-get -y --force-yes install git-core vim-nox sudo
 if [ ! -d "/opt/devstack" ]; then
-    git clone git://github.com/cloudbuilders/devstack.git ~/devstack
+    git clone git://github.com/cloudbuilders/devstack.git /opt/devstack
 fi
 cd /opt/devstack && $STACKSH_PARAMS ./stack.sh > /opt/run.sh.log
 EOF