diff --git a/phpBB/adm/style/install_update_diff.html b/phpBB/adm/style/install_update_diff.html
index 55f3d1cc49..58b9aa833f 100644
--- a/phpBB/adm/style/install_update_diff.html
+++ b/phpBB/adm/style/install_update_diff.html
@@ -42,7 +42,7 @@ function resize_panel()
 	width: 99%;
 }
 
-<!-- IF DIFF_MODE neq 'side_by_side' -->
+<!-- IF DIFF_MODE neq 'side_by_side' and DIFF_MODE neq 'raw' -->
 div#codepanel {
 	overflow: auto;
 	width: 100%;
@@ -199,7 +199,7 @@ table.hrdiff caption span {
 </head>
 
 
-<!-- IF DIFF_MODE neq 'side_by_side' -->
+<!-- IF DIFF_MODE neq 'side_by_side' and DIFF_MODE neq 'raw' -->
 <body onresize="resize_panel();" onload="resize_panel();">
 <!-- ELSE -->
 <body>
diff --git a/phpBB/includes/diff/renderer.php b/phpBB/includes/diff/renderer.php
index ce9e8955aa..e920e9688f 100644
--- a/phpBB/includes/diff/renderer.php
+++ b/phpBB/includes/diff/renderer.php
@@ -515,7 +515,7 @@ class diff_renderer_raw extends diff_renderer
 	*/
 	function get_diff_content($diff)
 	{
-		return '<textarea style="height: 400px;" class="full">' . htmlspecialchars($this->render($diff)) . '</textarea>';
+		return '<textarea style="height: 290px;" class="full">' . htmlspecialchars($this->render($diff)) . '</textarea>';
 	}
 
 	function _block_header($xbeg, $xlen, $ybeg, $ylen)
