diff --git a/fs/exfat/file.c b/fs/exfat/file.c
index 5e9b47ecc614..1c1524caaaf7 100644
--- a/fs/exfat/file.c
+++ b/fs/exfat/file.c
@@ -566,7 +566,7 @@ static int exfat_ioctl_get_volume_label(struct super_block *sb, unsigned long ar
 	if (ret < 0)
 		return ret;
 
-	ret = exfat_utf16_to_nls(sb, &uniname, label, uniname.name_len);
+	ret = exfat_utf16_to_nls(sb, &uniname, label, sizeof(label));
 	if (ret < 0)
 		return ret;