diff --git a/system/cu/Kconfig b/system/cu/Kconfig
index 8638e5a91..6ce6d7b8e 100644
--- a/system/cu/Kconfig
+++ b/system/cu/Kconfig
@@ -6,6 +6,8 @@
 menuconfig SYSTEM_CUTERM
 	tristate "CU minimal serial terminal"
 	default n
+	depends on ARCH_HAVE_SERIAL_TERMIOS
+	select SERIAL_TERMIOS
 	---help---
 		Enable the CU serial terminal.  This is a minimalistic
 		implementation of the 'cu' terminal program (part of Taylor UUCP for