diff --git a/src/Logging/JUnit/JunitXmlLogger.php b/src/Logging/JUnit/JunitXmlLogger.php
index ec173aff411..7347bb07094 100644
--- a/src/Logging/JUnit/JunitXmlLogger.php
+++ b/src/Logging/JUnit/JunitXmlLogger.php
@@ -202,7 +202,7 @@ public function testPrepared(): void
      */
     public function testFinished(Finished $event): void
     {
-        if ($this->preparationFailed) {
+        if (!$this->prepared || $this->preparationFailed) {
             return;
         }