diff --git a/supervisor/homeassistant/api.py b/supervisor/homeassistant/api.py
index feb604214ca..b0d099b1c87 100644
--- a/supervisor/homeassistant/api.py
+++ b/supervisor/homeassistant/api.py
@@ -164,6 +164,6 @@ async def get_api_state(self) -> str | None:
 
     async def check_api_state(self) -> bool:
         """Return Home Assistant Core state if up."""
-        if state := self.get_api_state():
+        if state := await self.get_api_state():
             return state == "RUNNING"
         return False
diff --git a/tests/conftest.py b/tests/conftest.py
index 86c3a531eeb..140b5080c1e 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -353,7 +353,6 @@ async def coresys(
     )
 
     # WebSocket
-    coresys_obj.homeassistant.api.check_api_state = AsyncMock(return_value=True)
     coresys_obj.homeassistant.api.get_api_state = AsyncMock(return_value="RUNNING")
     coresys_obj.homeassistant._websocket._client = AsyncMock(
         ha_version=AwesomeVersion("2021.2.4")