diff --git a/bin/wayback_machine_downloader b/bin/wayback_machine_downloader
index 1d0bb18..e666575 100755
--- a/bin/wayback_machine_downloader
+++ b/bin/wayback_machine_downloader
@@ -18,7 +18,7 @@ option_parser = OptionParser.new do |opts|
     options[:directory] = t
   end
 
-  opts.on("-s", "--all-timestamps", "Download all snapshots (ie. all timestamps)") do |t|
+  opts.on("-s", "--all-timestamps", "Download all snapshots/timestamps for a given website") do |t|
     options[:all_timestamps] = true
   end