diff --git a/lib/nova_plugins/hypervisor-ironic b/lib/nova_plugins/hypervisor-ironic
index 034e403..ee1a0e0 100644
--- a/lib/nova_plugins/hypervisor-ironic
+++ b/lib/nova_plugins/hypervisor-ironic
@@ -41,9 +41,9 @@
 
     iniset $NOVA_CONF DEFAULT compute_driver ironic.IronicDriver
     iniset $NOVA_CONF DEFAULT firewall_driver $LIBVIRT_FIREWALL_DRIVER
-    iniset $NOVA_CONF DEFAULT scheduler_host_manager ironic_host_manager
 
     if [[ "$IRONIC_USE_RESOURCE_CLASSES" == "False" ]]; then
+        iniset $NOVA_CONF DEFAULT scheduler_host_manager ironic_host_manager
         iniset $NOVA_CONF filter_scheduler use_baremetal_filters True
         iniset $NOVA_CONF filter_scheduler host_subset_size 999
         iniset $NOVA_CONF DEFAULT ram_allocation_ratio 1.0