diff --git a/include/linux/sched.h b/include/linux/sched.h
index e3d5564..555e27d 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1078,6 +1078,7 @@
 #endif
 
 #ifdef CONFIG_FAIR_GROUP_SCHED
+	int			depth;
 	struct sched_entity	*parent;
 	/* rq on which this entity is (to be) queued: */
 	struct cfs_rq		*cfs_rq;