diff --git a/src/opts.rs b/src/opts.rs
index 8156990..def47d9 100644
--- a/src/opts.rs
+++ b/src/opts.rs
@@ -5,7 +5,7 @@ use clap::{Parser, ValueHint};
 // Command line options
 /// A command-line utility for easily compressing and decompressing files and directories.
 ///
-/// Supported formats: tar, zip, bz/bz2, gz, lz4, xz/lz/lzma, zst
+/// Supported formats: tar, zip, bz/bz2, gz, lz4, xz/lz/lzma, zst.
 ///
 /// Repository: https://github.com/ouch-org/ouch
 #[derive(Parser, Debug)]