diff --git a/py/objarray.c b/py/objarray.c
index 89d2f21806..4e58d8e5da 100644
--- a/py/objarray.c
+++ b/py/objarray.c
@@ -530,6 +530,9 @@ STATIC mp_int_t array_get_buffer(mp_obj_t o_in, mp_buffer_info_t *bufinfo, mp_ui
 STATIC const mp_rom_map_elem_t array_locals_dict_table[] = {
     { MP_ROM_QSTR(MP_QSTR_append), MP_ROM_PTR(&array_append_obj) },
     { MP_ROM_QSTR(MP_QSTR_extend), MP_ROM_PTR(&array_extend_obj) },
+    #if MICROPY_CPYTHON_COMPAT
+    { MP_ROM_QSTR(MP_QSTR_decode), MP_ROM_PTR(&bytes_decode_obj) },
+    #endif
 };
 
 STATIC MP_DEFINE_CONST_DICT(array_locals_dict, array_locals_dict_table);
diff --git a/py/objstr.h b/py/objstr.h
index a10d0df8be..15ed7a2256 100644
--- a/py/objstr.h
+++ b/py/objstr.h
@@ -102,5 +102,6 @@ MP_DECLARE_CONST_FUN_OBJ_1(str_isalpha_obj);
 MP_DECLARE_CONST_FUN_OBJ_1(str_isdigit_obj);
 MP_DECLARE_CONST_FUN_OBJ_1(str_isupper_obj);
 MP_DECLARE_CONST_FUN_OBJ_1(str_islower_obj);
+MP_DECLARE_CONST_FUN_OBJ_VAR_BETWEEN(bytes_decode_obj);
 
 #endif // MICROPY_INCLUDED_PY_OBJSTR_H
diff --git a/tests/basics/bytearray_decode.py b/tests/basics/bytearray_decode.py
new file mode 100644
index 0000000000..b5e1cb419b
--- /dev/null
+++ b/tests/basics/bytearray_decode.py
@@ -0,0 +1,6 @@
+try:
+    print(bytearray(b'').decode())
+    print(bytearray(b'abc').decode())
+except AttributeError:
+    print("SKIP")
+    raise SystemExit