diff --git a/boards/t3_s3_v1_x.json b/boards/t3_s3_v1_x.json
index 530102e..49f9171 100644
--- a/boards/t3_s3_v1_x.json
+++ b/boards/t3_s3_v1_x.json
@@ -11,7 +11,8 @@
             "-DBOARD_HAS_PSRAM",
             "-DARDUINO_USB_CDC_ON_BOOT=1",
             "-DARDUINO_RUNNING_CORE=1",
-            "-DARDUINO_EVENT_RUNNING_CORE=1"
+            "-DARDUINO_EVENT_RUNNING_CORE=1",
+            "-DARDUINO_USB_MODE=1"
         ],
         "f_cpu": "240000000L",
         "f_flash": "80000000L",