diff --git a/esp8266/modmachine.c b/esp8266/modmachine.c
index f7a799bf01..8500086425 100644
--- a/esp8266/modmachine.c
+++ b/esp8266/modmachine.c
@@ -36,9 +36,27 @@
 #include "os_type.h"
 #include "osapi.h"
 #include "etshal.h"
+#include "user_interface.h"
 
 #if MICROPY_PY_MACHINE
 
+STATIC mp_obj_t machine_freq(mp_uint_t n_args, const mp_obj_t *args) {
+    if (n_args == 0) {
+        // get
+        return mp_obj_new_int(system_get_cpu_freq() * 1000000);
+    } else {
+        // set
+        mp_int_t freq = mp_obj_get_int(args[0]) / 1000000;
+        if (freq != 80 && freq != 160) {
+            nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError,
+                    "frequency can only be either 80Mhz or 160MHz"));
+        }
+        system_update_cpu_freq(freq);
+        return mp_const_none;
+    }
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(machine_freq_obj, 0, 1, machine_freq);
+
 typedef struct _esp_timer_obj_t {
     mp_obj_base_t base;
     os_timer_t timer;
@@ -120,6 +138,8 @@ STATIC const mp_rom_map_elem_t machine_module_globals_table[] = {
     { MP_ROM_QSTR(MP_QSTR_mem16), MP_ROM_PTR(&machine_mem16_obj) },
     { MP_ROM_QSTR(MP_QSTR_mem32), MP_ROM_PTR(&machine_mem32_obj) },
 
+    { MP_ROM_QSTR(MP_QSTR_freq), MP_ROM_PTR(&machine_freq_obj) },
+
     { MP_ROM_QSTR(MP_QSTR_Timer), MP_ROM_PTR(&esp_timer_type) },
     { MP_ROM_QSTR(MP_QSTR_Pin), MP_ROM_PTR(&pyb_pin_type) },
 };
diff --git a/esp8266/modpyb.c b/esp8266/modpyb.c
index a9daef9c7e..be64c1909f 100644
--- a/esp8266/modpyb.c
+++ b/esp8266/modpyb.c
@@ -77,23 +77,6 @@ STATIC mp_obj_t pyb_info(mp_uint_t n_args, const mp_obj_t *args) {
 }
 STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pyb_info_obj, 0, 1, pyb_info);
 
-STATIC mp_obj_t pyb_freq(mp_uint_t n_args, const mp_obj_t *args) {
-    if (n_args == 0) {
-        // get
-        return mp_obj_new_int(system_get_cpu_freq() * 1000000);
-    } else {
-        // set
-        mp_int_t freq = mp_obj_get_int(args[0]) / 1000000;
-        if (freq != 80 && freq != 160) {
-            nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError,
-                    "frequency can only be either 80Mhz or 160MHz"));
-        }
-        system_update_cpu_freq(freq);
-        return mp_const_none;
-    }
-}
-STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pyb_freq_obj, 0, 1, pyb_freq);
-
 STATIC mp_obj_t pyb_sync(void) {
     //storage_flush();
     return mp_const_none;
@@ -158,7 +141,6 @@ STATIC const mp_map_elem_t pyb_module_globals_table[] = {
     { MP_OBJ_NEW_QSTR(MP_QSTR___name__), MP_OBJ_NEW_QSTR(MP_QSTR_pyb) },
 
     { MP_OBJ_NEW_QSTR(MP_QSTR_info), (mp_obj_t)&pyb_info_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_freq), (mp_obj_t)&pyb_freq_obj },
 
     { MP_OBJ_NEW_QSTR(MP_QSTR_millis), (mp_obj_t)&pyb_millis_obj },
     { MP_OBJ_NEW_QSTR(MP_QSTR_elapsed_millis), (mp_obj_t)&pyb_elapsed_millis_obj },