diff --git a/homeassistant/core.py b/homeassistant/core.py
index d95c25d93e2..1b1849ba548 100644
--- a/homeassistant/core.py
+++ b/homeassistant/core.py
@@ -1723,13 +1723,13 @@ class Config:
 
         # In 2021.9 we fixed validation to disallow a path (because that's never correct)
         # but this data still lives in storage, so we print a warning.
-        if "external_url" in data and urlparse(data["external_url"]).path not in (
+        if data.get("external_url") and urlparse(data["external_url"]).path not in (
             "",
             "/",
         ):
             _LOGGER.warning("Invalid external_url set. It's not allowed to have a path")
 
-        if "internal_url" in data and urlparse(data["internal_url"]).path not in (
+        if data.get("internal_url") and urlparse(data["internal_url"]).path not in (
             "",
             "/",
         ):
diff --git a/tests/test_core.py b/tests/test_core.py
index df66fedd025..641a5e0dfda 100644
--- a/tests/test_core.py
+++ b/tests/test_core.py
@@ -1377,6 +1377,18 @@ async def test_additional_data_in_core_config(hass, hass_storage):
 async def test_incorrect_internal_external_url(hass, hass_storage, caplog):
     """Test that we warn when detecting invalid internal/extenral url."""
     config = ha.Config(hass)
+
+    hass_storage[ha.CORE_STORAGE_KEY] = {
+        "version": 1,
+        "data": {
+            "internal_url": None,
+            "external_url": None,
+        },
+    }
+    await config.async_load()
+    assert "Invalid external_url set" not in caplog.text
+    assert "Invalid internal_url set" not in caplog.text
+
     hass_storage[ha.CORE_STORAGE_KEY] = {
         "version": 1,
         "data": {