diff --git a/fs/btrfs/delayed-inode.h b/fs/btrfs/delayed-inode.h
index 74ae226ffaf0..ca96ef007d8f 100644
--- a/fs/btrfs/delayed-inode.h
+++ b/fs/btrfs/delayed-inode.h
@@ -70,7 +70,7 @@ struct btrfs_delayed_item {
 	refcount_t refs;
 	int ins_or_del;
 	u32 data_len;
-	char data[0];
+	char data[];
 };
 
 static inline void btrfs_init_delayed_root(