diff --git a/test/Loop/DriverTest.php b/test/Loop/DriverTest.php
index 0c74d8e..326801d 100644
--- a/test/Loop/DriverTest.php
+++ b/test/Loop/DriverTest.php
@@ -1487,7 +1487,8 @@ abstract class DriverTest extends TestCase {
 
     public function testBug163ConsecutiveDelayed() {
         $emits = 3;
-        Loop::run(function () use (&$time, $emits) {
+
+        $this->loop->defer(function () use (&$time, $emits) {
             $time = microtime(true);
             for ($i = 0; $i < $emits; ++$i) {
                 yield new Delayed(100);
@@ -1495,6 +1496,8 @@ abstract class DriverTest extends TestCase {
             $time = microtime(true) - $time;
         });
 
+        $this->loop->run();
+
         $this->assertGreaterThan(100 * $emits - 1 /* 1ms grace period */, $time * 1000);
     }
 }