diff --git a/src/types/color_sequence/type.c b/src/types/color_sequence/type.c
index 15dce5f..8446ede 100644
--- a/src/types/color_sequence/type.c
+++ b/src/types/color_sequence/type.c
@@ -169,7 +169,7 @@ static PyObject* interpolate(
 
 static Py_ssize_t mp_length(PyObject* self_in) {
   ColorSequenceObject* self = (ColorSequenceObject*)self_in;
-  return PyLong_FromLong(self->_sequence.length);
+  return self->_sequence.length;
 }
 
 static PyObject* mp_subscript(PyObject* self_in, PyObject* key) {
diff --git a/src/types/scalar_field/type.c b/src/types/scalar_field/type.c
index bf611bc..b42ad0b 100644
--- a/src/types/scalar_field/type.c
+++ b/src/types/scalar_field/type.c
@@ -59,7 +59,7 @@ static int allocate_scalars(ScalarFieldObject* self, size_t len) {
 
 static Py_ssize_t mp_length(PyObject* self_in) {
   ScalarFieldObject* self = (ScalarFieldObject*)self_in;
-  return PyLong_FromLong(self->length);
+  return self->length;
 }
 
 static PyObject* mp_subscript(PyObject* self_in, PyObject* key) {