diff --git a/catalystwan/response.py b/catalystwan/response.py
index 16b3b8b9..450c9fe9 100644
--- a/catalystwan/response.py
+++ b/catalystwan/response.py
@@ -191,8 +191,6 @@ def dataseq(self, cls: Type[T], sourcekey: Optional[str] = "data") -> DataSequen
 
         if isinstance(data, Sequence):
             sequence = data
-        elif data is None:
-            sequence = []
         else:
             sequence = [cast(dict, data)]