diff --git a/tshark.c b/tshark.c
index f930f9d..e3ac6c6 100644
--- a/tshark.c
+++ b/tshark.c
@@ -289,7 +289,7 @@ print_usage(gboolean print_ver)
   fprintf(output, "  -R <read filter>         packet Read filter in Wireshark display filter syntax\n");
   fprintf(output, "  -Y <display filter>      packet displaY filter in Wireshark display filter syntax\n");
   fprintf(output, "  -n                       disable all name resolutions (def: all enabled)\n");
-  fprintf(output, "  -N <name resolve flags>  enable specific name resolution(s): \"mntC\"\n");
+  fprintf(output, "  -N <name resolve flags>  enable specific name resolution(s): \"mnNtC\"\n");
   fprintf(output, "  -d %s ...\n", decode_as_arg_template);
   fprintf(output, "                           \"Decode As\", see the man page for details\n");
   fprintf(output, "                           Example: tcp.port==8888,http\n");
@@ -1344,7 +1344,7 @@ main(int argc, char *argv[])
       if (badopt != '\0') {
         cmdarg_err("-N specifies unknown resolving option '%c';",
                    badopt);
-        cmdarg_err_cont( "           Valid options are 'm', 'n', 't', and 'C'");
+        cmdarg_err_cont( "           Valid options are 'm', 'n', 'N', 't', and 'C'");
         return 1;
       }
       break;