diff --git a/custom_components/mikrotik_router/__init__.py b/custom_components/mikrotik_router/__init__.py
index 45c7ecc..0ed583f 100644
--- a/custom_components/mikrotik_router/__init__.py
+++ b/custom_components/mikrotik_router/__init__.py
@@ -28,16 +28,16 @@ async def async_setup(hass, _config):
 # ---------------------------
 async def async_setup_entry(hass, config_entry):
     """Set up Mikrotik Router as config entry."""
-    mikrotik_controller = MikrotikControllerData(hass, config_entry)
-    await mikrotik_controller.async_hwinfo_update()
+    controller = MikrotikControllerData(hass, config_entry)
+    await controller.async_hwinfo_update()
 
-    await mikrotik_controller.async_update()
+    await controller.async_update()
 
-    if not mikrotik_controller.data:
+    if not controller.data:
         raise ConfigEntryNotReady()
 
-    await mikrotik_controller.async_init()
-    hass.data[DOMAIN][DATA_CLIENT][config_entry.entry_id] = mikrotik_controller
+    await controller.async_init()
+    hass.data[DOMAIN][DATA_CLIENT][config_entry.entry_id] = controller
 
     hass.async_create_task(
         hass.config_entries.async_forward_entry_setup(config_entry, "sensor")
@@ -60,10 +60,10 @@ async def async_setup_entry(hass, config_entry):
     device_registry = await hass.helpers.device_registry.async_get_registry()
     device_registry.async_get_or_create(
         config_entry_id=config_entry.entry_id,
-        manufacturer=mikrotik_controller.data["resource"]["platform"],
-        model=mikrotik_controller.data["routerboard"]["model"],
-        name=mikrotik_controller.data["routerboard"]["model"],
-        sw_version=mikrotik_controller.data["resource"]["version"],
+        manufacturer=controller.data["resource"]["platform"],
+        model=controller.data["routerboard"]["model"],
+        name=controller.data["routerboard"]["model"],
+        sw_version=controller.data["resource"]["version"],
     )
 
     return True
@@ -74,13 +74,13 @@ async def async_setup_entry(hass, config_entry):
 # ---------------------------
 async def async_unload_entry(hass, config_entry):
     """Unload a config entry."""
-    mikrotik_controller = hass.data[DOMAIN][DATA_CLIENT][config_entry.entry_id]
+    controller = hass.data[DOMAIN][DATA_CLIENT][config_entry.entry_id]
     await hass.config_entries.async_forward_entry_unload(config_entry, "sensor")
     await hass.config_entries.async_forward_entry_unload(config_entry,
                                                          "binary_sensor")
     await hass.config_entries.async_forward_entry_unload(config_entry,
                                                          "device_tracker")
     await hass.config_entries.async_forward_entry_unload(config_entry, "switch")
-    await mikrotik_controller.async_reset()
+    await controller.async_reset()
     hass.data[DOMAIN][DATA_CLIENT].pop(config_entry.entry_id)
     return True