diff --git a/extmod/modframebuf.c b/extmod/modframebuf.c
index d3318899a8..f4e8571297 100644
--- a/extmod/modframebuf.c
+++ b/extmod/modframebuf.c
@@ -578,12 +578,12 @@ STATIC const mp_rom_map_elem_t framebuf_module_globals_table[] = {
     { MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_framebuf) },
     { MP_ROM_QSTR(MP_QSTR_FrameBuffer), MP_ROM_PTR(&mp_type_framebuf) },
     { MP_ROM_QSTR(MP_QSTR_FrameBuffer1), MP_ROM_PTR(&legacy_framebuffer1_obj) },
-    { MP_ROM_QSTR(MP_QSTR_MVLSB), MP_OBJ_NEW_SMALL_INT(FRAMEBUF_MVLSB) },
-    { MP_ROM_QSTR(MP_QSTR_MONO_VLSB), MP_OBJ_NEW_SMALL_INT(FRAMEBUF_MVLSB) },
-    { MP_ROM_QSTR(MP_QSTR_RGB565), MP_OBJ_NEW_SMALL_INT(FRAMEBUF_RGB565) },
-    { MP_ROM_QSTR(MP_QSTR_GS4_HMSB), MP_OBJ_NEW_SMALL_INT(FRAMEBUF_GS4_HMSB) },
-    { MP_ROM_QSTR(MP_QSTR_MONO_HLSB), MP_OBJ_NEW_SMALL_INT(FRAMEBUF_MHLSB) },
-    { MP_ROM_QSTR(MP_QSTR_MONO_HMSB), MP_OBJ_NEW_SMALL_INT(FRAMEBUF_MHMSB) },
+    { MP_ROM_QSTR(MP_QSTR_MVLSB), MP_ROM_INT(FRAMEBUF_MVLSB) },
+    { MP_ROM_QSTR(MP_QSTR_MONO_VLSB), MP_ROM_INT(FRAMEBUF_MVLSB) },
+    { MP_ROM_QSTR(MP_QSTR_RGB565), MP_ROM_INT(FRAMEBUF_RGB565) },
+    { MP_ROM_QSTR(MP_QSTR_GS4_HMSB), MP_ROM_INT(FRAMEBUF_GS4_HMSB) },
+    { MP_ROM_QSTR(MP_QSTR_MONO_HLSB), MP_ROM_INT(FRAMEBUF_MHLSB) },
+    { MP_ROM_QSTR(MP_QSTR_MONO_HMSB), MP_ROM_INT(FRAMEBUF_MHMSB) },
 };
 
 STATIC MP_DEFINE_CONST_DICT(framebuf_module_globals, framebuf_module_globals_table);
diff --git a/extmod/modlwip.c b/extmod/modlwip.c
index 48b4190e9e..9d1a8c4d06 100644
--- a/extmod/modlwip.c
+++ b/extmod/modlwip.c
@@ -1333,15 +1333,15 @@ STATIC const mp_rom_map_elem_t mp_module_lwip_globals_table[] = {
     { MP_ROM_QSTR(MP_QSTR_slip), MP_ROM_PTR(&lwip_slip_type) },
 #endif
     // class constants
-    { MP_ROM_QSTR(MP_QSTR_AF_INET), MP_OBJ_NEW_SMALL_INT(MOD_NETWORK_AF_INET) },
-    { MP_ROM_QSTR(MP_QSTR_AF_INET6), MP_OBJ_NEW_SMALL_INT(MOD_NETWORK_AF_INET6) },
+    { MP_ROM_QSTR(MP_QSTR_AF_INET), MP_ROM_INT(MOD_NETWORK_AF_INET) },
+    { MP_ROM_QSTR(MP_QSTR_AF_INET6), MP_ROM_INT(MOD_NETWORK_AF_INET6) },
 
-    { MP_ROM_QSTR(MP_QSTR_SOCK_STREAM), MP_OBJ_NEW_SMALL_INT(MOD_NETWORK_SOCK_STREAM) },
-    { MP_ROM_QSTR(MP_QSTR_SOCK_DGRAM), MP_OBJ_NEW_SMALL_INT(MOD_NETWORK_SOCK_DGRAM) },
-    { MP_ROM_QSTR(MP_QSTR_SOCK_RAW), MP_OBJ_NEW_SMALL_INT(MOD_NETWORK_SOCK_RAW) },
+    { MP_ROM_QSTR(MP_QSTR_SOCK_STREAM), MP_ROM_INT(MOD_NETWORK_SOCK_STREAM) },
+    { MP_ROM_QSTR(MP_QSTR_SOCK_DGRAM), MP_ROM_INT(MOD_NETWORK_SOCK_DGRAM) },
+    { MP_ROM_QSTR(MP_QSTR_SOCK_RAW), MP_ROM_INT(MOD_NETWORK_SOCK_RAW) },
 
-    { MP_ROM_QSTR(MP_QSTR_SOL_SOCKET), MP_OBJ_NEW_SMALL_INT(1) },
-    { MP_ROM_QSTR(MP_QSTR_SO_REUSEADDR), MP_OBJ_NEW_SMALL_INT(SOF_REUSEADDR) },
+    { MP_ROM_QSTR(MP_QSTR_SOL_SOCKET), MP_ROM_INT(1) },
+    { MP_ROM_QSTR(MP_QSTR_SO_REUSEADDR), MP_ROM_INT(SOF_REUSEADDR) },
 };
 
 STATIC MP_DEFINE_CONST_DICT(mp_module_lwip_globals, mp_module_lwip_globals_table);
diff --git a/extmod/moduselect.c b/extmod/moduselect.c
index 88dd29a49e..2b8b87b5ad 100644
--- a/extmod/moduselect.c
+++ b/extmod/moduselect.c
@@ -362,10 +362,10 @@ STATIC const mp_rom_map_elem_t mp_module_select_globals_table[] = {
     { MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_uselect) },
     { MP_ROM_QSTR(MP_QSTR_select), MP_ROM_PTR(&mp_select_select_obj) },
     { MP_ROM_QSTR(MP_QSTR_poll), MP_ROM_PTR(&mp_select_poll_obj) },
-    { MP_ROM_QSTR(MP_QSTR_POLLIN), MP_OBJ_NEW_SMALL_INT(MP_STREAM_POLL_RD) },
-    { MP_ROM_QSTR(MP_QSTR_POLLOUT), MP_OBJ_NEW_SMALL_INT(MP_STREAM_POLL_WR) },
-    { MP_ROM_QSTR(MP_QSTR_POLLERR), MP_OBJ_NEW_SMALL_INT(MP_STREAM_POLL_ERR) },
-    { MP_ROM_QSTR(MP_QSTR_POLLHUP), MP_OBJ_NEW_SMALL_INT(MP_STREAM_POLL_HUP) },
+    { MP_ROM_QSTR(MP_QSTR_POLLIN), MP_ROM_INT(MP_STREAM_POLL_RD) },
+    { MP_ROM_QSTR(MP_QSTR_POLLOUT), MP_ROM_INT(MP_STREAM_POLL_WR) },
+    { MP_ROM_QSTR(MP_QSTR_POLLERR), MP_ROM_INT(MP_STREAM_POLL_ERR) },
+    { MP_ROM_QSTR(MP_QSTR_POLLHUP), MP_ROM_INT(MP_STREAM_POLL_HUP) },
 };
 
 STATIC MP_DEFINE_CONST_DICT(mp_module_select_globals, mp_module_select_globals_table);