diff --git a/include/linux/sched.h b/include/linux/sched.h
index f751062..3c5610c 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -990,6 +990,7 @@
 	 */
 	struct pipe_inode_info *splice_pipe;
 #ifdef	CONFIG_TASK_DELAY_ACCT
+	spinlock_t delays_lock;
 	struct task_delay_info *delays;
 #endif
 };