diff --git a/sound/pci/Kconfig b/sound/pci/Kconfig
index 947cfb4..fe6fa93 100644
--- a/sound/pci/Kconfig
+++ b/sound/pci/Kconfig
@@ -678,6 +678,7 @@
 
 config SND_LX6464ES
 	tristate "Digigram LX6464ES"
+	depends on HAS_IOPORT
 	select SND_PCM
 	help
 	  Say Y here to include support for Digigram LX6464ES boards.