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diff --git a/circuitpython/py/objproperty.h b/circuitpython/py/objproperty.h
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+/*
+ * This file is part of the Micro Python project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * SPDX-FileCopyrightText: Copyright (c) 2013, 2014 Damien P. George
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#ifndef MICROPY_INCLUDED_PY_OBJPROPERTY_H
+#define MICROPY_INCLUDED_PY_OBJPROPERTY_H
+
+#include "py/obj.h"
+
+#if MICROPY_PY_BUILTINS_PROPERTY
+
+typedef struct _mp_obj_property_t {
+    mp_obj_base_t base;
+    mp_obj_t proxy[3]; // getter, setter, deleter
+} mp_obj_property_t;
+
+#if MICROPY_PY_OPTIMIZE_PROPERTY_FLASH_SIZE
+typedef struct _mp_obj_property_getter_t {
+    mp_obj_base_t base;
+    mp_obj_t proxy[1]; // getter
+} mp_obj_property_getter_t;
+
+typedef struct _mp_obj_property_getset_t {
+    mp_obj_base_t base;
+    mp_obj_t proxy[2]; // getter, setter
+} mp_obj_property_getset_t;
+
+#define MP_PROPERTY_GETTER(P, G) const mp_obj_property_getter_t P __attribute((section(".property_getter"))) = {.base.type = &mp_type_property, .proxy = {G}}
+#define MP_PROPERTY_GETSET(P, G, S) const mp_obj_property_getset_t P __attribute((section(".property_getset"))) = {.base.type = &mp_type_property, .proxy = {G, S}}
+
+#else
+typedef struct _mp_obj_property_t mp_obj_property_getter_t;
+typedef struct _mp_obj_property_t mp_obj_property_getset_t;
+
+#define MP_PROPERTY_GETTER(P, G) const mp_obj_property_t P = {.base.type = &mp_type_property, .proxy = {G, MP_ROM_NONE, MP_ROM_NONE}}
+#define MP_PROPERTY_GETSET(P, G, S) const mp_obj_property_t P = {.base.type = &mp_type_property, .proxy = {G, S, MP_ROM_NONE}}
+#endif
+
+#endif  // MICROPY_PY_BUILTINS_PROPERTY
+
+#endif  // MICROPY_INCLUDED_PY_OBJPROPERTY_H