diff --git a/src/main/Main.hs b/src/main/Main.hs
index 6058ab9825de3ecf64c29442bb2fa51f35ee7887..e9b56d92a8d47cca7380a5e2ee803069dadb1410 100644
--- a/src/main/Main.hs
+++ b/src/main/Main.hs
@@ -196,7 +196,7 @@ functorReader = eitherReader (\input -> parseFunctor input (T.pack input))
 data HelpCommand = HelpListFunctors
 
 helpCommand :: Parser HelpCommand
-helpCommand = subparser $ command "list_functors" (info (pure HelpListFunctors) (progDesc "list available functors"))
+helpCommand = subparser $ command "list-functors" (info (pure HelpListFunctors) (progDesc "list available functors"))
 
 options :: Parser Options
 options = Options <$> subcommand