diff --git a/app/lib/world/errors.coffee b/app/lib/world/errors.coffee
index 920db3251..c4eee90e7 100644
--- a/app/lib/world/errors.coffee
+++ b/app/lib/world/errors.coffee
@@ -2,7 +2,7 @@ Vector = require './vector'
 
 module.exports.ArgumentError = class ArgumentError extends Error
   @className: 'ArgumentError'
-  constructor: (@message, @functionName, @argumentName, @intendedType, @actualValue, @numArguments) ->
+  constructor: (@message, @functionName, @argumentName, @intendedType, @actualValue, @numArguments, @hint) ->
     super message
     @name = 'ArgumentError'
     if Error.captureStackTrace?