diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index 163e82f5..dc42078 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -127,6 +127,7 @@
 	struct list_head list;
 	struct transaction *curr;
 	spinlock_t lock;
+	struct work_struct work;
 };
 
 extern struct acpi_ec *first_ec;