diff --git a/examples/business-logic/example_business_logic.py b/examples/business-logic/example_business_logic.py
index eac88a59b..187355c31 100644
--- a/examples/business-logic/example_business_logic.py
+++ b/examples/business-logic/example_business_logic.py
@@ -73,6 +73,7 @@ class ExampleBusinessLogicHardwareManager(hardware.HardwareManager):
         return [{
             'step': 'companyx_verify_device_lifecycle',
             'priority': 472,
+            'interface': 'deploy',
             # If you need Ironic to coordinate a reboot after this step
             # runs, but before continuing cleaning, this should be true.
             'reboot_requested': False,
diff --git a/examples/vendor-device/example_device.py b/examples/vendor-device/example_device.py
index a9a21c7d8..a76b8d779 100644
--- a/examples/vendor-device/example_device.py
+++ b/examples/vendor-device/example_device.py
@@ -120,6 +120,7 @@ class ExampleDeviceHardwareManager(hardware.HardwareManager):
         return [{
             'step': 'upgrade_example_device_model1234_firmware',
             'priority': 37,
+            'interface': 'deploy',
             # If you need Ironic to coordinate a reboot after this step
             # runs, but before continuing cleaning, this should be true.
             'reboot_requested': True,