diff --git a/contrib/devstack/lib/lxd b/contrib/devstack/lib/lxd
index 6d3cfc72..1ca8c04b 100644
--- a/contrib/devstack/lib/lxd
+++ b/contrib/devstack/lib/lxd
@@ -21,7 +21,7 @@ function configure_lxd {
 	install_package python-software-properties
 	apt_get update
 
-	apt-add-repository -y ppa:ubuntu-lxc/lxd-daily
+	sudo apt-add-repository -y ppa:ubuntu-lxc/lxd-daily
 
 	if [[ ! -d /var/lib/lxd ]]; then
 		sudo mkdir -p /var/lib/lxd/