diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index eeb5d96..1e32fb8 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -127,7 +127,7 @@
 
 config CYCLADES
 	tristate "Cyclades async mux support"
-	depends on SERIAL_NONSTANDARD
+	depends on SERIAL_NONSTANDARD && (PCI || ISA)
 	---help---
 	  This driver supports Cyclades Z and Y multiserial boards.
 	  You would need something like this to connect more than two modems to