diff --git a/drivers/watchdog/iTCO_vendor_support.c b/drivers/watchdog/iTCO_vendor_support.c
index ca344a8..564974d 100644
--- a/drivers/watchdog/iTCO_vendor_support.c
+++ b/drivers/watchdog/iTCO_vendor_support.c
@@ -35,6 +35,8 @@
 
 #include "iTCO_vendor.h"
 
+#ifdef CONFIG_ITCO_VENDOR_SUPPORT
+
 /* iTCO defines */
 #define	SMI_EN		acpibase + 0x30	/* SMI Control and Enable Register */
 #define	TCOBASE		acpibase + 0x60	/* TCO base address */
@@ -309,3 +311,5 @@ MODULE_DESCRIPTION("Intel TCO Vendor Specific WatchDog Timer Driver Support");
 MODULE_VERSION(DRV_VERSION);
 MODULE_LICENSE("GPL");
 
+#endif
+