diff --git a/drivers/isdn/capi/Kconfig b/drivers/isdn/capi/Kconfig
index f04686580040..9816c51eb5c2 100644
--- a/drivers/isdn/capi/Kconfig
+++ b/drivers/isdn/capi/Kconfig
@@ -16,16 +16,6 @@ config CAPI_TRACE
 	  This will increase the size of the kernelcapi module by 20 KB.
 	  If unsure, say Y.
 
-config ISDN_CAPI_MIDDLEWARE
-	bool "CAPI2.0 Middleware support"
-	depends on TTY
-	help
-	  This option will enhance the capabilities of the /dev/capi20
-	  interface.  It will provide a means of moving a data connection,
-	  established via the usual /dev/capi20 interface to a special tty
-	  device.  If you want to use pppd with pppdcapiplugin to dial up to
-	  your ISP, say Y here.
-
 config ISDN_CAPI_CAPI20
 	tristate "CAPI2.0 /dev/capi support"
 	help
@@ -34,6 +24,16 @@ config ISDN_CAPI_CAPI20
 	  standardized libcapi20 to access this functionality.  You should say
 	  Y/M here.
 
+config ISDN_CAPI_MIDDLEWARE
+	bool "CAPI2.0 Middleware support"
+	depends on ISDN_CAPI_CAPI20 && TTY
+	help
+	  This option will enhance the capabilities of the /dev/capi20
+	  interface.  It will provide a means of moving a data connection,
+	  established via the usual /dev/capi20 interface to a special tty
+	  device.  If you want to use pppd with pppdcapiplugin to dial up to
+	  your ISP, say Y here.
+
 config ISDN_CAPI_CAPIDRV
 	tristate "CAPI2.0 capidrv interface support"
 	depends on ISDN_I4L