diff --git a/boards/esp32-m5core2.json b/boards/esp32-m5core2.json
index 99d42a6ab..e358f9778 100644
--- a/boards/esp32-m5core2.json
+++ b/boards/esp32-m5core2.json
@@ -7,7 +7,7 @@
     "extra_flags": "-DARDUINO_M5STACK_Core2 -DBOARD_HAS_PSRAM -mfix-esp32-psram-cache-issue",
     "f_cpu": "240000000L",
     "f_flash": "80000000L",
-    "flash_mode": "dio",
+    "flash_mode": "dout",
     "mcu": "esp32",
     "variant": "m5stack_core2",
     "partitions": "esp32_partition_app2944k_spiffs10M.csv"