diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index 77a5fa1..f3822f8 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -110,6 +110,7 @@
 	bool			transition_ongoing; /* Tracks transition status */
 	spinlock_t		transition_lock;
 	wait_queue_head_t	transition_wait;
+	struct task_struct	*transition_task; /* Task which is doing the transition */
 };
 
 /* Only for ACPI */