diff --git a/extensions/yii/debug/assets/main.css b/extensions/yii/debug/assets/main.css
index 7953873..5987af1 100644
--- a/extensions/yii/debug/assets/main.css
+++ b/extensions/yii/debug/assets/main.css
@@ -148,6 +148,6 @@ ul.trace {
 }
 
 td, th {
-	white-space: pre;
+	white-space: pre-line;
 	word-wrap: break-word;
 }