diff --git a/src/avr/Kconfig b/src/avr/Kconfig
index f1e747ab..260e5a84 100644
--- a/src/avr/Kconfig
+++ b/src/avr/Kconfig
@@ -104,10 +104,13 @@ config AVR_WATCHDOG
     default y
 
 config USBSERIAL
+    depends on (MACH_at90usb1286 || MACH_at90usb646 || MACH_atmega32u4) && !AVR_SERIAL_UART1
     bool
+    default y
 config SERIAL
+    depends on !USBSERIAL
     bool
-    default y if !USBSERIAL
+    default y
 choice
     prompt "Communication interface" if LOW_LEVEL_OPTIONS && (MACH_atmega2560 || MACH_atmega1280 || MACH_atmega644p || MACH_atmega1284p || MACH_at90usb1286 || MACH_at90usb646 || MACH_atmega32u4)
     config AVR_USB