diff --git a/public/stylesheets/blueprint/screen.css b/public/stylesheets/blueprint/screen.css
index 0c3b45f6f..562a344e0 100644
--- a/public/stylesheets/blueprint/screen.css
+++ b/public/stylesheets/blueprint/screen.css
@@ -47,7 +47,7 @@ abbr, acronym {border-bottom:1px dotted #666;}
 address {margin:0 0 1.5em;font-style:italic;}
 del {color:#666;}
 pre {margin:1.5em 0;white-space:pre;}
-pre, code, tt {font:1em 'andale mono', 'lucida console', monospace;line-height:1.5;}
+pre, code, tt {font:1em 'andale mono', 'lucida console', monospace;line-height:1.5;overflow:auto;}
 li ul, li ol {margin:0;}
 ul, ol {margin:0 1.5em 1.5em 0;padding-left:3.333em;}
 ul {list-style-type:disc;}