diff --git a/ports/atmel-samd/mpconfigport.h b/ports/atmel-samd/mpconfigport.h
index f185142e47..f7ccff4da2 100644
--- a/ports/atmel-samd/mpconfigport.h
+++ b/ports/atmel-samd/mpconfigport.h
@@ -43,12 +43,12 @@
 #define MICROPY_PY_SYS_PLATFORM                     "Atmel SAMD21"
 #define SPI_FLASH_MAX_BAUDRATE 8000000
 #define MICROPY_PY_BUILTINS_NOTIMPLEMENTED          (0)
-#define MICROPY_PY_COLLECTIONS_ORDEREDDICT          (0)
 #define MICROPY_PY_FUNCTION_ATTRS                   (0)
 // MICROPY_PY_UJSON depends on MICROPY_PY_IO
 #define MICROPY_PY_IO                               (0)
 #define MICROPY_PY_REVERSE_SPECIAL_METHODS          (0)
 #define MICROPY_PY_UJSON                            (0)
+#define MICROPY_PY_COLLECTIONS_ORDEREDDICT          (0)
 #define MICROPY_PY_UERRNO_LIST \
     X(EPERM) \
     X(ENOENT) \
@@ -81,7 +81,6 @@
 #endif
 #define SPI_FLASH_MAX_BAUDRATE 24000000
 #define MICROPY_PY_BUILTINS_NOTIMPLEMENTED          (1)
-#define MICROPY_PY_COLLECTIONS_ORDEREDDICT          (1)
 #define MICROPY_PY_FUNCTION_ATTRS                   (1)
 // MICROPY_PY_UJSON depends on MICROPY_PY_IO
 #define MICROPY_PY_IO                               (1)
diff --git a/ports/litex/mpconfigport.h b/ports/litex/mpconfigport.h
index fcf9d3b73b..a7caf8526c 100644
--- a/ports/litex/mpconfigport.h
+++ b/ports/litex/mpconfigport.h
@@ -30,7 +30,6 @@
 
 #define CIRCUITPY_INTERNAL_NVM_SIZE         (0)
 #define MICROPY_NLR_THUMB                   (0)
-#define MICROPY_PY_COLLECTIONS_ORDEREDDICT  (1)
 #define MICROPY_PY_REVERSE_SPECIAL_METHODS  (1)
 #define MICROPY_PY_UBINASCII                (1)
 #define MICROPY_PY_UJSON                    (1)
diff --git a/ports/mimxrt10xx/mpconfigport.h b/ports/mimxrt10xx/mpconfigport.h
index 7e7df01230..7496256d03 100644
--- a/ports/mimxrt10xx/mpconfigport.h
+++ b/ports/mimxrt10xx/mpconfigport.h
@@ -40,7 +40,6 @@ extern uint8_t _ld_default_stack_size;
 // 20kiB stack
 #define CIRCUITPY_DEFAULT_STACK_SIZE                ((uint32_t) &_ld_default_stack_size)
 #define MICROPY_PY_BUILTINS_NOTIMPLEMENTED          (0)
-#define MICROPY_PY_COLLECTIONS_ORDEREDDICT          (0)
 #define MICROPY_PY_FUNCTION_ATTRS                   (0)
 #define MICROPY_PY_IO                               (1)
 #define MICROPY_PY_UJSON                            (1)
diff --git a/ports/nrf/mpconfigport.h b/ports/nrf/mpconfigport.h
index 36a9819dc8..4ed42cd829 100644
--- a/ports/nrf/mpconfigport.h
+++ b/ports/nrf/mpconfigport.h
@@ -34,7 +34,6 @@
 #include "nrf_sdm.h"  // for SD_FLASH_SIZE
 #include "peripherals/nrf/nvm.h" // for FLASH_PAGE_SIZE
 
-#define MICROPY_PY_COLLECTIONS_ORDEREDDICT       (1)
 #define MICROPY_PY_FUNCTION_ATTRS                (1)
 #define MICROPY_PY_IO                            (1)
 #define MICROPY_PY_REVERSE_SPECIAL_METHODS       (1)
diff --git a/ports/stm/mpconfigport.h b/ports/stm/mpconfigport.h
index e054ffbb58..9489b47657 100644
--- a/ports/stm/mpconfigport.h
+++ b/ports/stm/mpconfigport.h
@@ -30,7 +30,6 @@
 
 #include <stdint.h>
 
-#define MICROPY_PY_COLLECTIONS_ORDEREDDICT       (1)
 #define MICROPY_PY_FUNCTION_ATTRS                (1)
 #define MICROPY_PY_IO                            (1)
 #define MICROPY_PY_REVERSE_SPECIAL_METHODS       (1)
diff --git a/ports/unix/mpconfigport.h b/ports/unix/mpconfigport.h
index 3ae4ff7866..d6bbad9ce1 100644
--- a/ports/unix/mpconfigport.h
+++ b/ports/unix/mpconfigport.h
@@ -99,7 +99,6 @@
 #define MICROPY_PY_SYS_STDFILES     (1)
 #define MICROPY_PY_SYS_EXC_INFO     (1)
 #define MICROPY_PY_COLLECTIONS_DEQUE (1)
-#define MICROPY_PY_COLLECTIONS_ORDEREDDICT (1)
 #ifndef MICROPY_PY_MATH_SPECIAL_FUNCTIONS
 #define MICROPY_PY_MATH_SPECIAL_FUNCTIONS (1)
 #endif
diff --git a/ports/unix/mpconfigport_coverage.h b/ports/unix/mpconfigport_coverage.h
index 51015a5872..468d69a733 100644
--- a/ports/unix/mpconfigport_coverage.h
+++ b/ports/unix/mpconfigport_coverage.h
@@ -49,7 +49,6 @@
 #define MICROPY_VFS_FAT                (1)
 #define MICROPY_FATFS_USE_LABEL        (1)
 #define MICROPY_PY_FRAMEBUF            (1)
-#define MICROPY_PY_COLLECTIONS_NAMEDTUPLE__ASDICT (1)
 
 // TODO these should be generic, not bound to fatfs
 #define mp_type_fileio mp_type_vfs_posix_fileio
diff --git a/py/circuitpy_mpconfig.h b/py/circuitpy_mpconfig.h
index 5ffdd4c8f3..1e01bd9c5e 100644
--- a/py/circuitpy_mpconfig.h
+++ b/py/circuitpy_mpconfig.h
@@ -194,6 +194,9 @@ typedef long mp_off_t;
 #define MICROPY_PY_BUILTINS_STR_PARTITION     (CIRCUITPY_FULL_BUILD)
 #define MICROPY_PY_BUILTINS_STR_SPLITLINES    (CIRCUITPY_FULL_BUILD)
 #define MICROPY_PY_UERRNO                     (CIRCUITPY_FULL_BUILD)
+#ifndef MICROPY_PY_COLLECTIONS_ORDEREDDICT
+#define MICROPY_PY_COLLECTIONS_ORDEREDDICT    (CIRCUITPY_FULL_BUILD)
+#endif
 // Opposite setting is deliberate.
 #define MICROPY_PY_UERRNO_ERRORCODE           (!CIRCUITPY_FULL_BUILD)
 #ifndef MICROPY_PY_URE
diff --git a/py/objnamedtuple.c b/py/objnamedtuple.c
index 6c36909e75..ab2f2f3c00 100644
--- a/py/objnamedtuple.c
+++ b/py/objnamedtuple.c
@@ -46,7 +46,7 @@ size_t mp_obj_namedtuple_find_field(const mp_obj_namedtuple_type_t *type, qstr n
     return (size_t)-1;
 }
 
-#if MICROPY_PY_COLLECTIONS_NAMEDTUPLE__ASDICT
+#if MICROPY_PY_COLLECTIONS_ORDEREDDICT
 STATIC mp_obj_t namedtuple_asdict(mp_obj_t self_in) {
     mp_obj_namedtuple_t *self = MP_OBJ_TO_PTR(self_in);
     const qstr *fields = ((mp_obj_namedtuple_type_t*)self->tuple.base.type)->fields;