diff --git a/extmod/modbluetooth.c b/extmod/modbluetooth.c
index 6c59d05c4..41e46b2f3 100644
--- a/extmod/modbluetooth.c
+++ b/extmod/modbluetooth.c
@@ -761,6 +761,7 @@ STATIC const mp_rom_map_elem_t mp_module_bluetooth_globals_table[] = {
     { MP_ROM_QSTR(MP_QSTR_FLAG_READ), MP_ROM_INT(MP_BLUETOOTH_CHARACTERISTIC_FLAG_READ) },
     { MP_ROM_QSTR(MP_QSTR_FLAG_WRITE), MP_ROM_INT(MP_BLUETOOTH_CHARACTERISTIC_FLAG_WRITE) },
     { MP_ROM_QSTR(MP_QSTR_FLAG_NOTIFY), MP_ROM_INT(MP_BLUETOOTH_CHARACTERISTIC_FLAG_NOTIFY) },
+    { MP_ROM_QSTR(MP_QSTR_FLAG_WRITE_NO_RESPONSE), MP_ROM_INT(MP_BLUETOOTH_CHARACTERISTIC_FLAG_WRITE_NO_RESPONSE) },
 };
 
 STATIC MP_DEFINE_CONST_DICT(mp_module_bluetooth_globals, mp_module_bluetooth_globals_table);
diff --git a/extmod/modbluetooth.h b/extmod/modbluetooth.h
index 2055b979b..376d3f5ac 100644
--- a/extmod/modbluetooth.h
+++ b/extmod/modbluetooth.h
@@ -65,6 +65,7 @@
 
 // These match the spec values for these flags so can be passed directly to the stack.
 #define MP_BLUETOOTH_CHARACTERISTIC_FLAG_READ     (1 << 1)
+#define MP_BLUETOOTH_CHARACTERISTIC_FLAG_WRITE_NO_RESPONSE (1 << 2)
 #define MP_BLUETOOTH_CHARACTERISTIC_FLAG_WRITE    (1 << 3)
 #define MP_BLUETOOTH_CHARACTERISTIC_FLAG_NOTIFY   (1 << 4)
 
diff --git a/tests/multi_bluetooth/ble_gatt_data_transfer.py b/tests/multi_bluetooth/ble_gatt_data_transfer.py
index c1e38a3d8..1be557f9b 100644
--- a/tests/multi_bluetooth/ble_gatt_data_transfer.py
+++ b/tests/multi_bluetooth/ble_gatt_data_transfer.py
@@ -16,14 +16,12 @@ _IRQ_GATTC_READ_RESULT = const(1 << 11)
 _IRQ_GATTC_WRITE_STATUS = const(1 << 12)
 _IRQ_GATTC_NOTIFY = const(1 << 13)
 
-FLAG_WRITE_NO_RESPONSE = const(1 << 2)
-
 SERVICE_UUID = bluetooth.UUID("00000001-1111-2222-3333-444444444444")
 CHAR_CTRL_UUID = bluetooth.UUID("00000002-1111-2222-3333-444444444444")
 CHAR_RX_UUID = bluetooth.UUID("00000003-1111-2222-3333-444444444444")
 CHAR_TX_UUID = bluetooth.UUID("00000004-1111-2222-3333-444444444444")
 CHAR_CTRL = (CHAR_CTRL_UUID, bluetooth.FLAG_WRITE | bluetooth.FLAG_NOTIFY)
-CHAR_RX = (CHAR_RX_UUID, bluetooth.FLAG_WRITE | FLAG_WRITE_NO_RESPONSE)
+CHAR_RX = (CHAR_RX_UUID, bluetooth.FLAG_WRITE | bluetooth.FLAG_WRITE_NO_RESPONSE)
 CHAR_TX = (CHAR_TX_UUID, bluetooth.FLAG_NOTIFY)
 SERVICE = (SERVICE_UUID, (CHAR_CTRL, CHAR_RX, CHAR_TX))
 SERVICES = (SERVICE,)