diff --git a/homeassistant/components/webmin/config_flow.py b/homeassistant/components/webmin/config_flow.py
index 3f55bbd9110..64f8c684dfa 100644
--- a/homeassistant/components/webmin/config_flow.py
+++ b/homeassistant/components/webmin/config_flow.py
@@ -26,7 +26,7 @@ from homeassistant.helpers.schema_config_entry_flow import (
     SchemaFlowFormStep,
 )
 
-from .const import DEFAULT_PORT, DEFAULT_SSL, DEFAULT_VERIFY_SSL, DOMAIN
+from .const import DEFAULT_PORT, DEFAULT_SSL, DEFAULT_VERIFY_SSL, DOMAIN, LOGGER
 from .helpers import get_instance_from_options, get_sorted_mac_addresses
 
 
@@ -45,9 +45,8 @@ async def validate_user_input(
             raise SchemaFlowError("invalid_auth") from err
         raise SchemaFlowError("cannot_connect") from err
     except Fault as fault:
-        raise SchemaFlowError(
-            f"Fault {fault.faultCode}: {fault.faultString}"
-        ) from fault
+        LOGGER.exception(f"Fault {fault.faultCode}: {fault.faultString}")
+        raise SchemaFlowError("unknown") from fault
     except ClientConnectionError as err:
         raise SchemaFlowError("cannot_connect") from err
     except Exception as err:
diff --git a/tests/components/webmin/test_config_flow.py b/tests/components/webmin/test_config_flow.py
index 477ad230622..03da3340597 100644
--- a/tests/components/webmin/test_config_flow.py
+++ b/tests/components/webmin/test_config_flow.py
@@ -74,7 +74,7 @@ async def test_form_user(
         (Exception, "unknown"),
         (
             Fault("5", "Webmin module net does not exist"),
-            "Fault 5: Webmin module net does not exist",
+            "unknown",
         ),
     ],
 )