1 files changed, 1 insertions, 1 deletions
diff --git a/zupdate.cc b/zupdate.cc
index 8685018..6a94c70 100644
--- a/zupdate.cc
+++ b/zupdate.cc
@@ -75,7 +75,7 @@ void show_help()
                "  -f, --force                do not skip a file even if the .lz exists\n"
                "  -k, --keep                 keep (don't delete) input files\n"
                "  -l, --lzip-verbose         pass a -v option to the lzip compressor\n"
-               "  -M, --format=<list>        exclude formats not in <list>\n"
+               "  -M, --format=<list>        process only the formats in <list>\n"
                "  -N, --no-rcfile            don't read runtime configuration file\n"
                "  -q, --quiet                suppress all messages\n"
                "  -r, --recursive            operate recursively on directories\n"