diff --git a/homeassistant/components/alexa_devices/__init__.py b/homeassistant/components/alexa_devices/__init__.py
index 7a267579f98..7a4641bc51f 100644
--- a/homeassistant/components/alexa_devices/__init__.py
+++ b/homeassistant/components/alexa_devices/__init__.py
@@ -5,7 +5,7 @@ from homeassistant.core import HomeAssistant
 from homeassistant.helpers import aiohttp_client, config_validation as cv
 from homeassistant.helpers.typing import ConfigType
 
-from .const import _LOGGER, COUNTRY_DOMAINS, DOMAIN
+from .const import _LOGGER, CONF_LOGIN_DATA, COUNTRY_DOMAINS, DOMAIN
 from .coordinator import AmazonConfigEntry, AmazonDevicesCoordinator
 from .services import async_setup_services
 
@@ -51,9 +51,9 @@ async def async_migrate_entry(hass: HomeAssistant, entry: AmazonConfigEntry) ->
         country = entry.data[CONF_COUNTRY]
         domain = COUNTRY_DOMAINS.get(country, country)
 
-        # Save domain and remove country
+        # Add site to login data
         new_data = entry.data.copy()
-        new_data.update({"site": f"https://www.amazon.{domain}"})
+        new_data[CONF_LOGIN_DATA]["site"] = f"https://www.amazon.{domain}"
 
         hass.config_entries.async_update_entry(
             entry, data=new_data, version=1, minor_version=2
diff --git a/tests/components/alexa_devices/test_init.py b/tests/components/alexa_devices/test_init.py
index e809f002321..7055f8482cc 100644
--- a/tests/components/alexa_devices/test_init.py
+++ b/tests/components/alexa_devices/test_init.py
@@ -58,4 +58,7 @@ async def test_migrate_entry(
     assert len(hass.config_entries.async_entries(DOMAIN)) == 1
     assert config_entry.state is ConfigEntryState.LOADED
     assert config_entry.minor_version == 2
-    assert config_entry.data["site"] == f"https://www.amazon.{TEST_COUNTRY}"
+    assert (
+        config_entry.data[CONF_LOGIN_DATA]["site"]
+        == f"https://www.amazon.{TEST_COUNTRY}"
+    )