diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index 0876199..9e43e39 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -97,7 +97,7 @@
 
 config COMPUTONE
 	tristate "Computone IntelliPort Plus serial support"
-	depends on SERIAL_NONSTANDARD
+	depends on SERIAL_NONSTANDARD && (ISA || EISA || PCI)
 	---help---
 	  This driver supports the entire family of Intelliport II/Plus
 	  controllers with the exception of the MicroChannel controllers and