diff --git a/ports/nrf/mpconfigport.h b/ports/nrf/mpconfigport.h
index 6386ffaf5..427b5ef1c 100644
--- a/ports/nrf/mpconfigport.h
+++ b/ports/nrf/mpconfigport.h
@@ -98,6 +98,8 @@
 #define MICROPY_MODULE_WEAK_LINKS   (1)
 #define MICROPY_CAN_OVERRIDE_BUILTINS (1)
 #define MICROPY_USE_INTERNAL_ERRNO  (1)
+#define MICROPY_ENABLE_SCHEDULER (1)
+#define MICROPY_SCHEDULER_DEPTH (4)
 #define MICROPY_PY_FUNCTION_ATTRS   (1)
 #define MICROPY_PY_BUILTINS_STR_UNICODE (0)
 #define MICROPY_PY_BUILTINS_STR_CENTER (0)