diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index dc1de72..f4f6329 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -157,7 +157,7 @@
 	  applications to perform basic fan control (on, off, status).
 
 config ACPI_DOCK
-	tristate "Dock"
+	bool "Dock"
 	depends on EXPERIMENTAL
 	help
 	  This driver adds support for ACPI controlled docking stations and removable