diff --git a/usbh_midi.h b/usbh_midi.h
index 0cf380de..41f24b6a 100755
--- a/usbh_midi.h
+++ b/usbh_midi.h
@@ -61,7 +61,7 @@ protected:
 
         void parseConfigDescr(byte addr, byte conf);
         unsigned int countSysExDataSize(uint8_t *dataptr);
-#ifdef DEBUG
+#ifdef DEBUG_USB_HOST
         void PrintEndpointDescriptor( const USB_ENDPOINT_DESCRIPTOR* ep_ptr );
 #endif
 public: