diff --git a/src/Codeception/Module/Yii2.php b/src/Codeception/Module/Yii2.php
index 862ea2e..274b2c5 100644
--- a/src/Codeception/Module/Yii2.php
+++ b/src/Codeception/Module/Yii2.php
@@ -397,8 +397,7 @@ public function _after(TestInterface $test)
 
     public function _failed(TestInterface $test, $fail)
     {
-        $log = $this->yiiLogger->getAndClearLog();
-        if (! empty($log)) {
+        if ($this->yiiLogger && $log = $this->yiiLogger->getAndClearLog()) {
             $test->getMetadata()->addReport('yii-log', $log);
         }