diff --git a/file.c b/file.c
index aebcc4c..34a9a55 100644
--- a/file.c
+++ b/file.c
@@ -631,7 +631,7 @@ static int exfat_file_zeroed_range(struct file *file, loff_t start, loff_t end)
 
 static inline bool exfat_iocb_is_dsync(const struct kiocb *iocb)
 {
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 19, 0)
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 0, 0)
 	return iocb_is_dsync(iocb);
 #else
 	return (iocb->ki_flags & IOCB_DSYNC) ||
@@ -676,7 +676,7 @@ static ssize_t exfat_file_write_iter(struct kiocb *iocb, struct iov_iter *iter)
 	if (pos > valid_size)
 		pos = valid_size;
 
-	if (iocb_is_dsync(iocb) && iocb->ki_pos > pos) {
+	if (exfat_iocb_is_dsync(iocb) && iocb->ki_pos > pos) {
 		ssize_t err = vfs_fsync_range(file, pos, iocb->ki_pos - 1,
 				iocb->ki_flags & IOCB_SYNC);
 		if (err < 0)