diff --git a/homeassistant/components/private_ble_device/config_flow.py b/homeassistant/components/private_ble_device/config_flow.py
index 02b3db494da1..2da8e4121b97 100644
--- a/homeassistant/components/private_ble_device/config_flow.py
+++ b/homeassistant/components/private_ble_device/config_flow.py
@@ -70,7 +70,7 @@ class BLEDeviceTrackerConfigFlow(ConfigFlow, domain=DOMAIN):
                     data={CONF_IRK: irk_bytes.hex()},
                 )
 
-        data_schema = vol.Schema({CONF_IRK: str})
+        data_schema = vol.Schema({vol.Required(CONF_IRK): str})
         return self.async_show_form(
             step_id="user", data_schema=data_schema, errors=errors
         )