diff --git a/tests/phpunit.xml b/tests/phpunit.xml
index 64d234a..603da83 100644
--- a/tests/phpunit.xml
+++ b/tests/phpunit.xml
@@ -17,4 +17,10 @@
          testSuiteLoaderClass="PHPUnit_Runner_StandardTestSuiteLoader"
          strict="true"
          verbose="false">
+	<filter>
+	  <blacklist>
+	    <directory>../util/FirePHPCore-0.3.2</directory>
+	    <directory>.</directory>
+	  </blacklist>
+	</filter>
 </phpunit>