diff --git a/apps/advanced/frontend/config/main.php b/apps/advanced/frontend/config/main.php
index c79df90..5be2849 100644
--- a/apps/advanced/frontend/config/main.php
+++ b/apps/advanced/frontend/config/main.php
@@ -26,6 +26,7 @@ return array(
 			'bundles' => require(__DIR__ . '/assets.php'),
 		),
 		'log' => array(
+			'traceLevel' => YII_DEBUG ? 3 : 0,
 			'targets' => array(
 				array(
 					'class' => 'yii\log\FileTarget',
diff --git a/apps/basic/config/web.php b/apps/basic/config/web.php
index b25d92d..10e8856 100644
--- a/apps/basic/config/web.php
+++ b/apps/basic/config/web.php
@@ -22,6 +22,7 @@ return array(
 			'bundles' => require(__DIR__ . '/assets.php'),
 		),
 		'log' => array(
+			'traceLevel' => YII_DEBUG ? 3 : 0,
 			'targets' => array(
 				array(
 					'class' => 'yii\log\FileTarget',