diff --git a/cores/esp32/USBCDC.cpp b/cores/esp32/USBCDC.cpp
index da0d5587af6..c99659dadac 100644
--- a/cores/esp32/USBCDC.cpp
+++ b/cores/esp32/USBCDC.cpp
@@ -79,7 +79,7 @@ void tud_cdc_tx_complete_cb(uint8_t itf){
 
 static void ARDUINO_ISR_ATTR cdc0_write_char(char c){
     if(devices[0] != NULL){
-        devices[0]->write(c);
+        tud_cdc_n_write_char(0, c);
     }
 }