diff --git a/content/ui.js b/content/ui.js
index 86139130..8019e7d6 100644
--- a/content/ui.js
+++ b/content/ui.js
@@ -225,6 +225,7 @@ liberator.CommandLine = function () //{{{
         if (outputContainer.collapsed)
             doc.body.innerHTML = "";
 
+        XML.prettyPrinting = false;
         doc.body.appendChild(liberator.util.xmlToDom(output, doc));
 
         var availableHeight = 250;