diff --git a/tests/EmitterTest.php b/tests/EmitterTest.php
index e916de0c..2885fb78 100644
--- a/tests/EmitterTest.php
+++ b/tests/EmitterTest.php
@@ -23,7 +23,6 @@
 
 /**
  * @group gcf-framework
- * @runClassInSeparateProcess
  */
 class EmitterTest extends TestCase
 {