diff --git a/ports/esp32/main.c b/ports/esp32/main.c
index 1420dd579c..4a9c0060b2 100644
--- a/ports/esp32/main.c
+++ b/ports/esp32/main.c
@@ -66,7 +66,6 @@
 
 // MicroPython runs as a task under FreeRTOS
 #define MP_TASK_PRIORITY        (ESP_TASK_PRIO_MIN + 1)
-#define MP_TASK_STACK_SIZE      (16 * 1024)
 
 // Set the margin for detecting stack overflow, depending on the CPU architecture.
 #if CONFIG_IDF_TARGET_ESP32C3
@@ -87,7 +86,7 @@ int vprintf_null(const char *format, va_list ap) {
 void mp_task(void *pvParameter) {
     volatile uint32_t sp = (uint32_t)esp_cpu_get_sp();
     #if MICROPY_PY_THREAD
-    mp_thread_init(pxTaskGetStackStart(NULL), MP_TASK_STACK_SIZE / sizeof(uintptr_t));
+    mp_thread_init(pxTaskGetStackStart(NULL), MICROPY_TASK_STACK_SIZE / sizeof(uintptr_t));
     #endif
     #if CONFIG_ESP_CONSOLE_USB_SERIAL_JTAG
     usb_serial_jtag_init();
@@ -109,7 +108,7 @@ void mp_task(void *pvParameter) {
 soft_reset:
     // initialise the stack pointer for the main thread
     mp_stack_set_top((void *)sp);
-    mp_stack_set_limit(MP_TASK_STACK_SIZE - MP_TASK_STACK_LIMIT_MARGIN);
+    mp_stack_set_limit(MICROPY_TASK_STACK_SIZE - MP_TASK_STACK_LIMIT_MARGIN);
     gc_init(mp_task_heap, mp_task_heap + MP_TASK_HEAP_SIZE);
     mp_init();
     mp_obj_list_append(mp_sys_path, MP_OBJ_NEW_QSTR(MP_QSTR__slash_lib));
@@ -206,7 +205,7 @@ void app_main(void) {
     MICROPY_BOARD_STARTUP();
 
     // Create and transfer control to the MicroPython task.
-    xTaskCreatePinnedToCore(mp_task, "mp_task", MP_TASK_STACK_SIZE / sizeof(StackType_t), NULL, MP_TASK_PRIORITY, &mp_main_task_handle, MP_TASK_COREID);
+    xTaskCreatePinnedToCore(mp_task, "mp_task", MICROPY_TASK_STACK_SIZE / sizeof(StackType_t), NULL, MP_TASK_PRIORITY, &mp_main_task_handle, MP_TASK_COREID);
 }
 
 void nlr_jump_fail(void *val) {
diff --git a/ports/esp32/mpconfigport.h b/ports/esp32/mpconfigport.h
index ae73e02e41..da26a78ae7 100644
--- a/ports/esp32/mpconfigport.h
+++ b/ports/esp32/mpconfigport.h
@@ -152,6 +152,11 @@
 #define MICROPY_FATFS_MAX_SS                (4096)
 #define MICROPY_FATFS_LFN_CODE_PAGE         437 /* 1=SFN/ANSI 437=LFN/U.S.(OEM) */
 
+// task size
+#ifndef MICROPY_TASK_STACK_SIZE
+#define MICROPY_TASK_STACK_SIZE             (16 * 1024)
+#endif
+
 #define MP_STATE_PORT MP_STATE_VM
 
 // type definitions for the specific machine