diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 28709f6b0975c..648f02363ff99 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -1471,7 +1471,7 @@ struct sched_group_capacity {
 	int			id;
 #endif
 
-	unsigned long		cpumask[0];		/* Balance mask */
+	unsigned long		cpumask[];		/* Balance mask */
 };
 
 struct sched_group {