diff --git a/py/objdict.c b/py/objdict.c
index f226abbd2f..66a442fbaa 100644
--- a/py/objdict.c
+++ b/py/objdict.c
@@ -61,8 +61,8 @@ static mp_obj_t dict_binary_op(int op, mp_obj_t lhs_in, mp_obj_t rhs_in) {
 }
 
 const mp_obj_type_t dict_type = {
-    .base = { &mp_const_type },
-    .name = "dict",
+    { &mp_const_type },
+    "dict",
     .print = dict_print,
     .make_new = dict_make_new,
     .binary_op = dict_binary_op,
diff --git a/py/objfloat.c b/py/objfloat.c
index 4b51971814..d21472d5d6 100644
--- a/py/objfloat.c
+++ b/py/objfloat.c
@@ -62,8 +62,8 @@ static mp_obj_t float_binary_op(int op, mp_obj_t lhs_in, mp_obj_t rhs_in) {
 }
 
 const mp_obj_type_t float_type = {
-    .base = { &mp_const_type },
-    .name = "float",
+    { &mp_const_type },
+    "float",
     .print = float_print,
     .make_new = float_make_new,
     .unary_op = float_unary_op,
diff --git a/py/objint.c b/py/objint.c
index cf51b7870a..9cd5ebae29 100644
--- a/py/objint.c
+++ b/py/objint.c
@@ -31,8 +31,8 @@ static mp_obj_t int_make_new(mp_obj_t type_in, int n_args, const mp_obj_t *args)
 }
 
 const mp_obj_type_t int_type = {
-    .base = { &mp_const_type },
-    .name = "int",
+    { &mp_const_type },
+    "int",
     .make_new = int_make_new,
 };
 
diff --git a/py/objlist.c b/py/objlist.c
index 0446412e83..5162fa09ff 100644
--- a/py/objlist.c
+++ b/py/objlist.c
@@ -293,8 +293,8 @@ static const mp_method_t list_type_methods[] = {
 };
 
 const mp_obj_type_t list_type = {
-    .base = { &mp_const_type },
-    .name = "list",
+    { &mp_const_type },
+    "list",
     .print = list_print,
     .make_new = list_make_new,
     .binary_op = list_binary_op,
@@ -360,8 +360,8 @@ mp_obj_t list_it_iternext(mp_obj_t self_in) {
 }
 
 static const mp_obj_type_t list_it_type = {
-    .base = { &mp_const_type },
-    .name = "list_iterator",
+    { &mp_const_type },
+    "list_iterator",
     .iternext = list_it_iternext,
 };
 
diff --git a/py/objnone.c b/py/objnone.c
index dc93c25e2d..c0efe6c0f5 100644
--- a/py/objnone.c
+++ b/py/objnone.c
@@ -15,8 +15,8 @@ void none_print(void (*print)(void *env, const char *fmt, ...), void *env, mp_ob
 }
 
 const mp_obj_type_t none_type = {
-    .base = { &mp_const_type },
-    .name = "NoneType",
+    { &mp_const_type },
+    "NoneType",
     .print = none_print,
 };
 
diff --git a/py/objslice.c b/py/objslice.c
index 3b1bbb186b..d95ccef06f 100644
--- a/py/objslice.c
+++ b/py/objslice.c
@@ -48,8 +48,8 @@ void slice_print(void (*print)(void *env, const char *fmt, ...), void *env, mp_o
 }
 
 const mp_obj_type_t slice_type = {
-    .base = { &mp_const_type },
-    .name = "slice",
+    { &mp_const_type },
+    "slice",
     .print = slice_print,
 };
 
diff --git a/py/objstr.c b/py/objstr.c
index b95aafe432..cc9f7f85b4 100644
--- a/py/objstr.c
+++ b/py/objstr.c
@@ -191,8 +191,8 @@ static const mp_method_t str_type_methods[] = {
 };
 
 const mp_obj_type_t str_type = {
-    .base = { &mp_const_type },
-    .name = "str",
+    { &mp_const_type },
+    "str",
     .print = str_print,
     .binary_op = str_binary_op,
     .getiter = str_getiter,
@@ -234,8 +234,8 @@ mp_obj_t str_it_iternext(mp_obj_t self_in) {
 }
 
 static const mp_obj_type_t str_it_type = {
-    .base = { &mp_const_type },
-    .name = "str_iterator",
+    { &mp_const_type },
+    "str_iterator",
     .iternext = str_it_iternext,
 };
 
diff --git a/py/objtuple.c b/py/objtuple.c
index e96f76aeaf..0050fc5ea0 100644
--- a/py/objtuple.c
+++ b/py/objtuple.c
@@ -97,8 +97,8 @@ static mp_obj_t tuple_getiter(mp_obj_t o_in) {
 }
 
 const mp_obj_type_t tuple_type = {
-    .base = { &mp_const_type },
-    .name = "tuple",
+    { &mp_const_type },
+    "tuple",
     .print = tuple_print,
     .make_new = tuple_make_new,
     .binary_op = tuple_binary_op,
@@ -162,8 +162,8 @@ static mp_obj_t tuple_it_iternext(mp_obj_t self_in) {
 }
 
 static const mp_obj_type_t tuple_it_type = {
-    .base = { &mp_const_type },
-    .name = "tuple_iterator",
+    { &mp_const_type },
+    "tuple_iterator",
     .iternext = tuple_it_iternext,
 };
 
diff --git a/py/objtype.c b/py/objtype.c
index 012071d6e1..8778c180ca 100644
--- a/py/objtype.c
+++ b/py/objtype.c
@@ -23,8 +23,8 @@ static mp_obj_t type_call_n(mp_obj_t self_in, int n_args, const mp_obj_t *args)
 }
 
 const mp_obj_type_t mp_const_type = {
-    .base = { &mp_const_type },
-    .name = "type",
+    { &mp_const_type },
+    "type",
     .print = type_print,
     .call_n = type_call_n,
 };