diff --git a/converter/usb_usb/Makefile.debug b/converter/usb_usb/Makefile.debug
index e229cd78..830995b4 100644
--- a/converter/usb_usb/Makefile.debug
+++ b/converter/usb_usb/Makefile.debug
@@ -1,6 +1,20 @@
 TARGET = usb_usb_debug
-UNIMAP_ENABLE = yes
+
+#UNIMAP_ENABLE = yes
 #KEYMAP_SECTION_ENABLE = yes
-#LUFA_DEBUG = yes
-OPT_DEFS += -DDEBUG_USB_HOST
+
+# LUFA debug print
+# This may prevent USB enumeration and keyboard init
+LUFA_DEBUG = yes
+# Select one of outputs for debug print
+LUFA_DEBUG_UART = yes
+#LUFA_DEBUG_SUART = yes
+
+# USB_Host_Shield_2.0 debug print
+# This may prevent USB enumeration and keyboard init
+#OPT_DEFS += -DDEBUG_USB_HOST
+
+CONSOLE_ENABLE = yes
+MOUSEKEY_ENABLE = no
+EXTRAKEY_ENABLE = no
 include Makefile