diff --git a/lib/ironic b/lib/ironic
index 016e639d03..294115cafe 100644
--- a/lib/ironic
+++ b/lib/ironic
@@ -652,13 +652,9 @@ function enroll_nodes {
         total_cpus=$((total_cpus+$ironic_node_cpu))
     done < $ironic_hwinfo_file
 
-    # create the nova flavor
-    # NOTE(adam_g): Attempting to use an autogenerated UUID for flavor id here uncovered
-    # bug (LP: #1333852) in Trove.  This can be changed to use an auto flavor id when the
-    # bug is fixed in Juno.
     local adjusted_disk
     adjusted_disk=$(($ironic_node_disk - $ironic_ephemeral_disk))
-    nova flavor-create --ephemeral $ironic_ephemeral_disk baremetal 551 $ironic_node_ram $adjusted_disk $ironic_node_cpu
+    nova flavor-create --ephemeral $ironic_ephemeral_disk baremetal auto $ironic_node_ram $adjusted_disk $ironic_node_cpu
 
     nova flavor-key baremetal set "cpu_arch"="x86_64"