diff --git a/extmod/moductypes.c b/extmod/moductypes.c
index f7d2be1bc1..811258424a 100644
--- a/extmod/moductypes.c
+++ b/extmod/moductypes.c
@@ -137,11 +137,7 @@ STATIC void uctypes_struct_print(const mp_print_t *print, mp_obj_t self_in, mp_p
     (void)kind;
     mp_obj_uctypes_struct_t *self = MP_OBJ_TO_PTR(self_in);
     const char *typen = "unk";
-    if (mp_obj_is_type(self->desc, &mp_type_dict)
-        #if MICROPY_PY_COLLECTIONS_ORDEREDDICT
-        || mp_obj_is_type(self->desc, &mp_type_ordereddict)
-        #endif
-        ) {
+    if (mp_obj_is_dict_or_ordereddict(self->desc)) {
         typen = "STRUCT";
     } else if (mp_obj_is_type(self->desc, &mp_type_tuple)) {
         mp_obj_tuple_t *t = MP_OBJ_TO_PTR(self->desc);
@@ -214,11 +210,7 @@ STATIC mp_uint_t uctypes_struct_agg_size(mp_obj_tuple_t *t, int layout_type, mp_
 }
 
 STATIC mp_uint_t uctypes_struct_size(mp_obj_t desc_in, int layout_type, mp_uint_t *max_field_size) {
-    if (!mp_obj_is_type(desc_in, &mp_type_dict)
-        #if MICROPY_PY_COLLECTIONS_ORDEREDDICT
-        && !mp_obj_is_type(desc_in, &mp_type_ordereddict)
-        #endif
-        ) {
+    if (!mp_obj_is_dict_or_ordereddict(desc_in)) {
         if (mp_obj_is_type(desc_in, &mp_type_tuple)) {
             return uctypes_struct_agg_size((mp_obj_tuple_t *)MP_OBJ_TO_PTR(desc_in), layout_type, max_field_size);
         } else if (mp_obj_is_small_int(desc_in)) {
@@ -418,11 +410,7 @@ STATIC void set_aligned(uint val_type, void *p, mp_int_t index, mp_obj_t val) {
 STATIC mp_obj_t uctypes_struct_attr_op(mp_obj_t self_in, qstr attr, mp_obj_t set_val) {
     mp_obj_uctypes_struct_t *self = MP_OBJ_TO_PTR(self_in);
 
-    if (!mp_obj_is_type(self->desc, &mp_type_dict)
-        #if MICROPY_PY_COLLECTIONS_ORDEREDDICT
-        && !mp_obj_is_type(self->desc, &mp_type_ordereddict)
-        #endif
-        ) {
+    if (!mp_obj_is_dict_or_ordereddict(self->desc)) {
         mp_raise_TypeError(MP_ERROR_TEXT("struct: no fields"));
     }