diff --git a/src/unit/engine/PhpunitTestEngine.php b/src/unit/engine/PhpunitTestEngine.php
--- a/src/unit/engine/PhpunitTestEngine.php
+++ b/src/unit/engine/PhpunitTestEngine.php
@@ -93,7 +93,7 @@
    * Parse test results from phpunit json report.
    *
    * @param string $path Path to test
-   * @param string $json_tmp Path to phpunit json report
+   * @param string $xml_tmp Path to phpunit json report
    * @param string $clover_tmp Path to phpunit clover report
    * @param string $stderr Data written to stderr
    *