diff --git a/src/main.sh b/src/main.sh
index 62302fd..3c85a6f 100755
--- a/src/main.sh
+++ b/src/main.sh
@@ -123,10 +123,11 @@ fi
 
 if [ "${1:-}" = "--help" ]; then
   $CAT <<EOF
-Usage: \`$0\` [ \`--help\` ]
+Usage: \`$0\` [ \`--help\` | \`--show-artist\` \`<mbid>\` ]
 
 Options:
-  \`--help\`:  Show this help and exit.
+  \`--help\`:                  Show this help and exit.
+  \`--show-artist\` \`<mbid>\`:  Show releaes of the artist given by the MusicBrainz ID \`<mbid>\`.
 EOF
   exit 0
 fi