diff --git a/zephyr/main.c b/zephyr/main.c
index 250e51a2f5..0d381f0102 100644
--- a/zephyr/main.c
+++ b/zephyr/main.c
@@ -72,6 +72,9 @@ soft_reset:
     gc_init(heap, heap + sizeof(heap));
     #endif
     mp_init();
+    mp_obj_list_init(mp_sys_path, 0);
+    mp_obj_list_append(mp_sys_path, MP_OBJ_NEW_QSTR(MP_QSTR_)); // current dir (or base dir of the script)
+    mp_obj_list_init(mp_sys_argv, 0);
     MP_STATE_PORT(mp_kbd_exception) = mp_obj_new_exception(&mp_type_KeyboardInterrupt);
 
     #if MICROPY_MODULE_FROZEN