diff --git a/vagrant--devstack/provision/openstack.sh b/vagrant--devstack/provision/openstack.sh
index 9b6a56b..e3c43d1 100755
--- a/vagrant--devstack/provision/openstack.sh
+++ b/vagrant--devstack/provision/openstack.sh
@@ -14,7 +14,7 @@ sudo apt-get install -y git
 ##
 ## Create network
 ##
-cat > /etc/network/interfaces.d/openstack <<MARK
+sudo tee /etc/network/interfaces.d/openstack >/dev/null <<MARK
 # auto eth1
 # iface dummy0 inet manual
 #    pre-up ip link add dummy0 type dummy