diff --git a/api/Tests/phpunit.xml b/api/Tests/phpunit.xml
index 3d09106f..42725396 100644
--- a/api/Tests/phpunit.xml
+++ b/api/Tests/phpunit.xml
@@ -7,7 +7,6 @@
          convertWarningsToExceptions="true"
          forceCoversAnnotation="false"
          mapTestClassNameToCoveredClassName="false"
-         printerClass="PHPUnit_TextUI_ResultPrinter"
          processIsolation="false"
          stopOnError="false"
          stopOnFailure="false"