diff --git a/tests/components/vizio/test_init.py b/tests/components/vizio/test_init.py
index ccda9253ec7..288dd2c6ac0 100644
--- a/tests/components/vizio/test_init.py
+++ b/tests/components/vizio/test_init.py
@@ -3,9 +3,8 @@ from datetime import timedelta
 
 import pytest
 
-from homeassistant.components.media_player.const import DOMAIN as MP_DOMAIN
 from homeassistant.components.vizio.const import DOMAIN
-from homeassistant.const import STATE_UNAVAILABLE
+from homeassistant.const import STATE_UNAVAILABLE, Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.setup import async_setup_component
 import homeassistant.util.dt as dt_util
@@ -25,7 +24,7 @@ async def test_setup_component(
         hass, DOMAIN, {DOMAIN: MOCK_USER_VALID_TV_CONFIG}
     )
     await hass.async_block_till_done()
-    assert len(hass.states.async_entity_ids(MP_DOMAIN)) == 1
+    assert len(hass.states.async_entity_ids(Platform.MEDIA_PLAYER)) == 1
 
 
 async def test_tv_load_and_unload(
@@ -40,12 +39,12 @@ async def test_tv_load_and_unload(
     config_entry.add_to_hass(hass)
     assert await hass.config_entries.async_setup(config_entry.entry_id)
     await hass.async_block_till_done()
-    assert len(hass.states.async_entity_ids(MP_DOMAIN)) == 1
+    assert len(hass.states.async_entity_ids(Platform.MEDIA_PLAYER)) == 1
     assert DOMAIN in hass.data
 
     assert await config_entry.async_unload(hass)
     await hass.async_block_till_done()
-    entities = hass.states.async_entity_ids(MP_DOMAIN)
+    entities = hass.states.async_entity_ids(Platform.MEDIA_PLAYER)
     assert len(entities) == 1
     for entity in entities:
         assert hass.states.get(entity).state == STATE_UNAVAILABLE
@@ -64,12 +63,12 @@ async def test_speaker_load_and_unload(
     config_entry.add_to_hass(hass)
     assert await hass.config_entries.async_setup(config_entry.entry_id)
     await hass.async_block_till_done()
-    assert len(hass.states.async_entity_ids(MP_DOMAIN)) == 1
+    assert len(hass.states.async_entity_ids(Platform.MEDIA_PLAYER)) == 1
     assert DOMAIN in hass.data
 
     assert await config_entry.async_unload(hass)
     await hass.async_block_till_done()
-    entities = hass.states.async_entity_ids(MP_DOMAIN)
+    entities = hass.states.async_entity_ids(Platform.MEDIA_PLAYER)
     assert len(entities) == 1
     for entity in entities:
         assert hass.states.get(entity).state == STATE_UNAVAILABLE
@@ -91,7 +90,7 @@ async def test_coordinator_update_failure(
     config_entry.add_to_hass(hass)
     assert await hass.config_entries.async_setup(config_entry.entry_id)
     await hass.async_block_till_done()
-    assert len(hass.states.async_entity_ids(MP_DOMAIN)) == 1
+    assert len(hass.states.async_entity_ids(Platform.MEDIA_PLAYER)) == 1
     assert DOMAIN in hass.data
 
     # Failing 25 days in a row should result in a single log message