diff --git a/tests/components/generic/test_config_flow.py b/tests/components/generic/test_config_flow.py
index 7e76d8f3891..8c2d52f173b 100644
--- a/tests/components/generic/test_config_flow.py
+++ b/tests/components/generic/test_config_flow.py
@@ -4,6 +4,7 @@ import contextlib
 import errno
 from http import HTTPStatus
 import os.path
+from pathlib import Path
 from unittest.mock import AsyncMock, PropertyMock, patch
 
 import httpx
@@ -274,8 +275,8 @@ async def test_form_only_still_sample(
 ) -> None:
     """Test various sample images #69037."""
     image_path = os.path.join(os.path.dirname(__file__), image_file)
-    with open(image_path, "rb") as image:
-        respx.get("http://127.0.0.1/testurl/1").respond(stream=image.read())
+    image_bytes = await hass.async_add_executor_job(Path(image_path).read_bytes)
+    respx.get("http://127.0.0.1/testurl/1").respond(stream=image_bytes)
     data = TESTDATA.copy()
     data.pop(CONF_STREAM_SOURCE)
     with patch("homeassistant.components.generic.async_setup_entry", return_value=True):