diff --git a/esp3d/configuration.h b/esp3d/configuration.h
index f674c9eb..5a036164 100644
--- a/esp3d/configuration.h
+++ b/esp3d/configuration.h
@@ -76,7 +76,7 @@
 
 /* Optional Output 
  * Instead of Serial, you can use USB Serial
- * USE_USB_SERIAL //for ESP32  S2/S3 Only
+ * USB_SERIAL_FEATURE on ESP32  S2/S3 Only
  */
 //#define USB_SERIAL_FEATURE
 
diff --git a/esp3d/src/include/esp3d_sanity.h b/esp3d/src/include/esp3d_sanity.h
index 2ab201c7..11af8b56 100644
--- a/esp3d/src/include/esp3d_sanity.h
+++ b/esp3d/src/include/esp3d_sanity.h
@@ -89,12 +89,6 @@
 #endif
 
 
-
-#if  ESP_SERIAL_OUTPUT == USE_USB_SERIAL && !defined(USB_SERIAL_FEATURE)
-#error USB_SERIAL_FEATURE is necessary for ESP_SERIAL_OUTPUT == USE_USB_SERIAL
-#endif  
-
-
 /**************************
  * Bluetooth
  * ***********************/