diff --git a/libraries/MySensors/core/MyMainDefault.cpp b/libraries/MySensors/core/MyMainDefault.cpp
index 40f006a..b1934b9 100644
--- a/libraries/MySensors/core/MyMainDefault.cpp
+++ b/libraries/MySensors/core/MyMainDefault.cpp
@@ -3,7 +3,9 @@
 int main(void) {
 	init();
 	#if defined(USBCON)
-		USBDevice.init();
+		#if defined(ARDUINO_ARCH_SAMD)
+			USBDevice.init();
+		#endif
     		USBDevice.attach();
 	#endif
 	_begin(); // Startup MySensors library