diff --git a/homeassistant/components/hunterdouglas_powerview/config_flow.py b/homeassistant/components/hunterdouglas_powerview/config_flow.py
index 52a70b85d2e..1e47b9ec3fe 100644
--- a/homeassistant/components/hunterdouglas_powerview/config_flow.py
+++ b/homeassistant/components/hunterdouglas_powerview/config_flow.py
@@ -126,7 +126,9 @@ class ConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
     def _host_already_configured(self, host):
         """See if we already have a hub with the host address configured."""
         existing_hosts = {
-            entry.data[CONF_HOST] for entry in self._async_current_entries()
+            entry.data[CONF_HOST]
+            for entry in self._async_current_entries()
+            if CONF_HOST in entry.data
         }
         return host in existing_hosts
 
diff --git a/tests/components/hunterdouglas_powerview/test_config_flow.py b/tests/components/hunterdouglas_powerview/test_config_flow.py
index e5b0d472304..383d0445a7d 100644
--- a/tests/components/hunterdouglas_powerview/test_config_flow.py
+++ b/tests/components/hunterdouglas_powerview/test_config_flow.py
@@ -6,7 +6,7 @@ from homeassistant import config_entries, setup
 from homeassistant.components.hunterdouglas_powerview.const import DOMAIN
 
 from tests.async_mock import AsyncMock, MagicMock, patch
-from tests.common import load_fixture
+from tests.common import MockConfigEntry, load_fixture
 
 
 def _get_mock_powerview_userdata(userdata=None, get_resources=None):
@@ -102,6 +102,9 @@ async def test_form_homekit(hass):
     """Test we get the form with homekit source."""
     await setup.async_setup_component(hass, "persistent_notification", {})
 
+    ignored_config_entry = MockConfigEntry(domain=DOMAIN, data={}, source="ignore")
+    ignored_config_entry.add_to_hass(hass)
+
     mock_powerview_userdata = _get_mock_powerview_userdata()
     with patch(
         "homeassistant.components.hunterdouglas_powerview.UserData",