diff --git a/bin/vows b/bin/vows
index 81b1274..5220864 100755
--- a/bin/vows
+++ b/bin/vows
@@ -196,12 +196,11 @@ if (args.length === 0 || options.watch) {
     msg('bin', 'discovered', "./" + testFolder);
     if (args.length === 0) {
         args = paths(testFolder).filter(function (f) {
-            return new(RegExp)('(-|_)' + testFolder + '.(js|coffee)$').test(f);
+            return specFileExt.test(f);
         });
 
         if (options.watch) {
-            args = args.concat(paths('lib'),
-                               paths('src'));
+            args = args.concat(paths('lib'), paths('src'));
         }
     }
 }