diff --git a/arg-parser.js b/arg-parser.js
index b1ce932..99bf0cc 100755
--- a/arg-parser.js
+++ b/arg-parser.js
@@ -19,11 +19,10 @@ function Arg({
 };
 
 
-function Arguments(argumentsObject=[], helpText='') {
-  this.help = helpText;
+function Arguments(argumentsObject=[]) {
   this.args = argumentsObject;
 
-  Arguments.prototype.add = (...a) => a.forEach((x) => argumentsObject.push(new Arg(x)));
+  this.add = (...a) => a.forEach((x) => argumentsObject.push(new Arg(x)));
 
   this.parse = function() {
     const argsRequiringValues = this.args.filter((a) => a.requiresValue);
@@ -55,9 +54,11 @@ function Arguments(argumentsObject=[], helpText='') {
       // Check for attempts to use --flags that don't exist
       let valid = true;
       if (av.startsWith('--')) {
-        valid = cpuArguments.args.filter((a) => a.flags.long === av.substring(2)).length > 0;
+        // TODO: this may be wrong:
+        valid = this.args.filter((a) => a.flags.long === av.substring(2)).length > 0;
       } else if (av.startsWith('-')) {
-        valid = cpuArguments.args.filter((a) => a.flags.short === av.substring(1)).length > 0;
+        // TODO: this may be wrong:
+        valid = this.args.filter((a) => a.flags.short === av.substring(1)).length > 0;
       }
       if (!valid) { throw new Error(`There is no ${av} option`); }
 
@@ -77,6 +78,7 @@ function Arguments(argumentsObject=[], helpText='') {
       }
 
       // TODO return something useful
+
     });
   }
 }