diff --git a/devstack/files/debs/ironic b/devstack/files/debs/ironic
index 5a4ca76690..1df2b40ea6 100644
--- a/devstack/files/debs/ironic
+++ b/devstack/files/debs/ironic
@@ -1,3 +1,5 @@
+# apparmor is an undeclared dependency for docker on ubuntu: https://github.com/docker/docker/issues/9745
+apparmor
 docker.io
 ipmitool
 iptables