diff --git a/index.js b/index.js
index 00703af..a9de12b 100644
--- a/index.js
+++ b/index.js
@@ -29,8 +29,10 @@ function gfmLink(text) {
     text = text.split('>').join('');
     text = text.split('<').join('');
     text = text.split('>').join('');
+    text = text.split('(').join('');
+    text = text.split(')').join('');
     text = text.split(' ').join('-');
-    return text;
+    return text.toLowerCase();
 }
 
 function define(anchors,name,auto,suffix) {
diff --git a/testRunner.js b/testRunner.js
index 0f38de3..0536d21 100644
--- a/testRunner.js
+++ b/testRunner.js
@@ -11,6 +11,7 @@ var mdv = require('./index.js');
 
 var argv = require('yargs')
     .usage('testRunner [options] [{path-to-specs}...]')
+    .demand(1)
     .boolean('debug')
     .alias('d','debug')
     .describe('debug','pass debug flag to mdv')