diff --git a/src/platformio.ini b/src/platformio.ini
index ebe09e57..c46b1305 100644
--- a/src/platformio.ini
+++ b/src/platformio.ini
@@ -143,6 +143,6 @@ build_flags = ${env.build_flags}
     -DDEF_LED1=17
     -DLED_ACTIVE_HIGH
     -DARDUINO_USB_MODE=1
-    -DARDUINO_USB_CDC_ON_BOOT=1
+    ;-DARDUINO_USB_CDC_ON_BOOT=1
 monitor_filters =
     esp32_exception_decoder, colorize