diff --git a/src/writer/core.py b/src/writer/core.py
index c5fd79303..94364955b 100644
--- a/src/writer/core.py
+++ b/src/writer/core.py
@@ -1376,10 +1376,10 @@ def _transform_time_change(self, ev) -> str:
 
         return payload
 
-    def _transform_range_change(self, ev) -> tuple[int, int] | list[int]:
+    def _transform_range_change(self, ev) -> list[int]:
         payload = ev.payload
 
-        if not isinstance(payload, tuple) and not isinstance(payload, list):
+        if not isinstance(payload, list):
             raise ValueError("Range must be an array.")
 
         if len(payload) != 2: