diff --git a/default.dzslides b/default.dzslides
index c8c249030..97d518931 100644
--- a/default.dzslides
+++ b/default.dzslides
@@ -12,7 +12,7 @@ $if(keywords)$
   <meta name="keywords" content="$for(keywords)$$keywords$$sep$, $endfor$">
 $endif$
   <title>$if(title-prefix)$$title-prefix$ – $endif$$pagetitle$</title>
-  <style type="text/css">code{white-space: pre;}</style>
+  <style type="text/css">code{white-space: pre-wrap;}</style>
 $if(quotes)$
   <style type="text/css">q { quotes: "“" "”" "‘" "’"; }</style>
 $endif$