diff --git a/src/Main.hs b/src/Main.hs
index 715353b..7609acd 100644
--- a/src/Main.hs
+++ b/src/Main.hs
@@ -29,7 +29,9 @@ data Options = Options
 -- | Program arguments parser
 options :: Parser Options
 options = Options
-  <$> strArgument ( help "Namecoin name id" )
+  <$> strArgument
+      ( metavar "NAME"
+     <> help "Namecoin name id" )
   <*> strOption
       ( long "url"
      <> short 'u'
@@ -39,15 +41,15 @@ options = Options
   <*> switch
       ( long "dnschain"
      <> short 'd'
-     <> help "Use dnschain api")
+     <> help "Use dnschain api" )
   <*> switch
       ( long "block"
      <> short 'b'
-     <> help "Show blockchain data (require local connection)")
+     <> help "Show blockchain data (require local connection)" )
   <*> switch
       ( long "raw"
      <> short 'r'
-     <> help "Print raw JSON data")
+     <> help "Print raw JSON data" )
 
 
 -- | Program description