diff --git a/daft/logical/schema.py b/daft/logical/schema.py
index 401a235d53..93005ddae7 100644
--- a/daft/logical/schema.py
+++ b/daft/logical/schema.py
@@ -8,7 +8,7 @@
 from daft.daft import read_csv_schema as _read_csv_schema
 from daft.daft import read_json_schema as _read_json_schema
 from daft.daft import read_parquet_schema as _read_parquet_schema
-from daft.datatype import DataType, TimeUnit
+from daft.datatype import DataType, TimeUnit, _ensure_registered_super_ext_type
 
 if TYPE_CHECKING:
     import pyarrow as pa
@@ -82,6 +82,7 @@ def to_pyarrow_schema(self) -> pa.Schema:
         Returns:
             pa.Schema: PyArrow schema that corresponds to the provided Daft schema
         """
+        _ensure_registered_super_ext_type()
         return self._schema.to_pyarrow_schema()
 
     @classmethod
diff --git a/daft/series.py b/daft/series.py
index 5cbcfe7ba0..fd85d33f13 100644
--- a/daft/series.py
+++ b/daft/series.py
@@ -213,6 +213,8 @@ def to_arrow(self) -> pa.Array:
         """
         Convert this Series to an pyarrow array.
         """
+        _ensure_registered_super_ext_type()
+
         dtype = self.datatype()
         arrow_arr = self._series.to_arrow()