diff --git a/pyxform/errors.py b/pyxform/errors.py
index d02cb4bb..f8c71c29 100644
--- a/pyxform/errors.py
+++ b/pyxform/errors.py
@@ -448,8 +448,8 @@ class ErrorCode(Enum):
         msg=(
             "[row : {row}] On the 'survey' sheet, the 'parameters' value is invalid. "
             "For the 'range' question type, the parameters 'tick_interval', 'placeholder', "
-            "and 'tick_labelset' are only supported for the appearances 'vertical', 'no-ticks' "
-            "and the default (empty) horizontal."
+            "and 'tick_labelset' are only supported for the appearances 'vertical', 'no-ticks', "
+            "'vertical no-ticks', and the default (empty) horizontal."
         ),
     )
     RANGE_009 = Detail(
diff --git a/pyxform/validators/pyxform/question_types/range.py b/pyxform/validators/pyxform/question_types/range.py
index 1c346e7d..e8e22597 100644
--- a/pyxform/validators/pyxform/question_types/range.py
+++ b/pyxform/validators/pyxform/question_types/range.py
@@ -26,15 +26,11 @@ def process_range_question_type(
     :param choices: The choices data as `{list_name: [choice_items[options], ...]}`.
     :return: The updated row.
     """
-    """
-    Returns a new row that includes the Range parameters start, end and step.
-
-    Raises PyXFormError when invalid range parameters are used.
-    """
     pv.validate(parameters=parameters, accepted=co.ParametersRange, row_number=row_number)
     if (
         appearance
-        and appearance not in {"vertical", "no-ticks"}
+        and "vertical" not in appearance
+        and "no-ticks" not in appearance
         and any(
             k in parameters
             for k in (
@@ -45,7 +41,6 @@ def process_range_question_type(
         )
     ):
         raise PyXFormError(ErrorCode.RANGE_008.value.format(row=row_number))
-    no_ticks_appearance = appearance and appearance == "no-ticks"
 
     defaults = QUESTION_TYPE_DICT["range"][co.PARAMETERS]
     # set defaults
@@ -136,6 +131,7 @@ def process_parameter(name: str) -> Decimal | None:
         if tick_list is None:
             raise PyXFormError(ErrorCode.RANGE_006.value.format(row=row_number))
 
+        no_ticks_appearance = appearance and "no-ticks" in appearance
         no_ticks_labels = set()
         for item in tick_list:
             errored = False
diff --git a/tests/test_range.py b/tests/test_range.py
index 20d17333..0f0b74b7 100644
--- a/tests/test_range.py
+++ b/tests/test_range.py
@@ -9,7 +9,7 @@
   - RC003: parameter names may in lower case or in mixed case.
   - RC004: parameter names and values must be separated by a single equals sign.
   - RC005: parameter values must be numeric (or for 'tick_labelset', the choices).
-  - RC006: appearance parameters are only valid with default, 'vertical' or 'no-ticks' appearance.
+  - RC006: appearance parameters are only valid with default, 'vertical' or 'no-ticks' (or both) appearance.
   - RC007: parameters may specify ranges that are positive, negative, ascending, or descending.
   - parameter 'step':
     - RS001: must not be zero.
@@ -672,7 +672,7 @@ def test_parameters_not_compatible_with_appearance__ok(self):
             ("placeholder=3", {"odk:placeholder": "3"}),
             ("tick_labelset=c1", {}),
         )
-        cases = ("", "vertical", "no-ticks")
+        cases = ("", "vertical", "no-ticks", "no-ticks vertical", "vertical no-ticks")
         for param, attr in params:
             for appearance in cases:
                 with self.subTest((param, attr, appearance)):