diff --git a/index.js b/index.js
index 67098d89..2c546120 100644
--- a/index.js
+++ b/index.js
@@ -15,9 +15,14 @@ var nextTick = typeof setImmediate !== 'undefined'
 ;
 
 exports = module.exports = (function () {
-    var harness = createHarness();
-    harness.createStream().pipe(createDefaultStream());
-    return harness;
+    var harness;
+    return function () {
+        if (!harness) {
+            harness = createHarness();
+            harness.createStream().pipe(createDefaultStream());
+        }
+        return harness.apply(this, arguments);
+    };
 })();
 
 exports.createHarness = createHarness;
diff --git a/test/array.js b/test/array.js
index a4b47c29..2d498632 100644
--- a/test/array.js
+++ b/test/array.js
@@ -31,7 +31,7 @@ tap.test('array test', function (tt) {
         ]);
     });
     
-    test.stream.pipe(tc);
+    test.createStream().pipe(tc);
     
     test('array', function (t) {
         t.plan(5);