diff --git a/conf/machine/include/sample.inc b/conf/machine/include/sample.inc
index 040cc57..acbfee6 100644
--- a/conf/machine/include/sample.inc
+++ b/conf/machine/include/sample.inc
@@ -21,8 +21,7 @@
         host-ipmid-oem \
         host-ipmid-fru \
        "
-
-PREFERRED_PROVIDER_virtual/obmc-phosphor-host-ipmi-hw ?= "host-ipmi-hw-example"
+PREFERRED_PROVIDER_virtual/obmc-phosphor-host-ipmi-hw = "host-ipmi-hw-example"
 PREFERRED_PROVIDER_virtual/obmc-phosphor-chassis-mgmt = "obmc-phosphor-chassisd"
 PREFERRED_PROVIDER_virtual/obmc-phosphor-event-mgmt = "obmc-phosphor-eventd"
 PREFERRED_PROVIDER_virtual/obmc-phosphor-fan-mgmt = "obmc-phosphor-fand"