diff --git a/mkfs/mkfs.c b/mkfs/mkfs.c
index 4bea722..1a03501 100644
--- a/mkfs/mkfs.c
+++ b/mkfs/mkfs.c
@@ -582,8 +582,13 @@
 	}
 
 	opterr = 0;
-	while ((c = getopt_long(argc, argv, "l:c:fVvh", opts, NULL)) != EOF)
+	while ((c = getopt_long(argc, argv, "n:l:c:fVvh", opts, NULL)) != EOF)
 		switch (c) {
+		/*
+		 * Make 'n' option fallthrough to 'l' option for for backward
+		 * compatibility with old utils.
+		 */
+		case 'n':
 		case 'l':
 		{
 			ret = exfat_iconv_enc(&exfat_iconv, optarg,