diff --git a/custom_components/ftms/__init__.py b/custom_components/ftms/__init__.py
index 37df0f8..e5f1a7c 100644
--- a/custom_components/ftms/__init__.py
+++ b/custom_components/ftms/__init__.py
@@ -7,7 +7,7 @@
 from homeassistant.components.bluetooth.match import BluetoothCallbackMatcher
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import (
-    CONF_ADDRESS,
+    CONF_MAC,
     CONF_SENSORS,
     EVENT_HOMEASSISTANT_STOP,
     Platform,
@@ -45,12 +45,12 @@ async def async_unload_entry(hass: HomeAssistant, entry: FtmsConfigEntry) -> boo
 async def async_setup_entry(hass: HomeAssistant, entry: FtmsConfigEntry) -> bool:
     """Set up device from a config entry."""
 
-    address: str = entry.data[CONF_ADDRESS]
+    mac: str = entry.data[CONF_MAC]
 
-    if not (srv_info := bluetooth.async_last_service_info(hass, address)):
+    if not (srv_info := bluetooth.async_last_service_info(hass, mac)):
         raise ConfigEntryNotReady(
             translation_key="device_not_found",
-            translation_placeholders={"address": address},
+            translation_placeholders={"address": mac},
         )
 
     def _on_disconnect(ftms_: pyftms.FitnessMachine) -> None:
@@ -68,7 +68,7 @@ def _on_disconnect(ftms_: pyftms.FitnessMachine) -> None:
     assert ftms.machine_type.name
 
     unique_id = "".join(
-        x.lower() for x in ftms.device_info.get("serial_number", address) if x.isalnum()
+        x.lower() for x in ftms.device_info.get("serial_number", mac) if x.isalnum()
     )
 
     device_info = dr.DeviceInfo(
@@ -101,7 +101,7 @@ def _async_on_ble_event(
         bluetooth.async_register_callback(
             hass,
             _async_on_ble_event,
-            BluetoothCallbackMatcher(address=address),
+            BluetoothCallbackMatcher(address=mac),
             bluetooth.BluetoothScanningMode.ACTIVE,
         )
     )
diff --git a/custom_components/ftms/config_flow.py b/custom_components/ftms/config_flow.py
index 3a2f98b..4cd495f 100644
--- a/custom_components/ftms/config_flow.py
+++ b/custom_components/ftms/config_flow.py
@@ -20,7 +20,7 @@
     OptionsFlow,
     OptionsFlowWithConfigEntry,
 )
-from homeassistant.const import CONF_ADDRESS, CONF_DISCOVERY, CONF_SENSORS
+from homeassistant.const import CONF_DISCOVERY, CONF_MAC, CONF_SENSORS
 from homeassistant.core import callback
 from homeassistant.helpers.selector import selector
 from pyftms import (
@@ -47,7 +47,7 @@ async def async_step_init(
         if user_input is not None:
             return self.async_create_entry(title="", data=user_input)
 
-        address = self.config_entry.data[CONF_ADDRESS]
+        address = self.config_entry.data[CONF_MAC]
 
         if not (srv_info := async_last_service_info(self.hass, address)):
             return self.async_abort(reason="no_devices_found")
@@ -111,8 +111,8 @@ async def async_step_user(
         """Handle the user step to pick discovered device."""
 
         if user_input is not None:
-            address = user_input[CONF_ADDRESS]
-            self._ble_info = self._discovered_devices[address]
+            mac = user_input[CONF_MAC]
+            self._ble_info = self._discovered_devices[mac]
 
             return await self.async_step_confirm()
 
@@ -137,7 +137,7 @@ async def async_step_user(
             for mac, dev in self._discovered_devices.items()
         }
 
-        schema = vol.Schema({vol.Required(CONF_ADDRESS): vol.In(devices)})
+        schema = vol.Schema({vol.Required(CONF_MAC): vol.In(devices)})
 
         return self.async_show_form(step_id="user", data_schema=schema)
 
@@ -265,7 +265,7 @@ async def async_step_information(self, user_input=None):
 
             return self.async_create_entry(
                 title=" ".join((s1, s2, s3)),
-                data={CONF_ADDRESS: self._ftms.address},
+                data={CONF_MAC: self._ftms.address},
                 options={CONF_SENSORS: user_input[CONF_SENSORS]},
             )
 
diff --git a/custom_components/ftms/connect.py b/custom_components/ftms/connect.py
index e15ac4d..21e94a8 100644
--- a/custom_components/ftms/connect.py
+++ b/custom_components/ftms/connect.py
@@ -1,4 +1,5 @@
 from bleak.exc import BleakError
+from homeassistant.const import CONF_MAC
 from homeassistant.exceptions import ConfigEntryNotReady
 from pyftms import FitnessMachine
 
@@ -9,5 +10,5 @@ async def ftms_connect(ftms: FitnessMachine):
     except BleakError as exc:
         raise ConfigEntryNotReady(
             translation_key="connection_failed",
-            translation_placeholders={"address": ftms.address},
+            translation_placeholders={CONF_MAC: ftms.address},
         ) from exc
diff --git a/custom_components/ftms/translations/en.json b/custom_components/ftms/translations/en.json
index 5f2a3e3..9f5bf6a 100644
--- a/custom_components/ftms/translations/en.json
+++ b/custom_components/ftms/translations/en.json
@@ -241,10 +241,10 @@
   },
   "exceptions": {
     "device_not_found": {
-      "message": "Bluetooth device {address} not found."
+      "message": "Bluetooth device {mac} not found."
     },
     "connection_failed": {
-      "message": "Failed connect to Bluetooth device {address}."
+      "message": "Failed connect to Bluetooth device {mac}."
     }
   }
 }
\ No newline at end of file
diff --git a/custom_components/ftms/translations/ru.json b/custom_components/ftms/translations/ru.json
index 512340a..e33fe38 100644
--- a/custom_components/ftms/translations/ru.json
+++ b/custom_components/ftms/translations/ru.json
@@ -241,10 +241,10 @@
   },
   "exceptions": {
     "device_not_found": {
-      "message": "Bluetooth устройство {address} не найдено."
+      "message": "Bluetooth устройство {mac} не найдено."
     },
     "connection_failed": {
-      "message": "Ошибка соединения с Bluetooth устройством {address}."
+      "message": "Ошибка соединения с Bluetooth устройством {mac}."
     }
   }
 }
\ No newline at end of file