diff --git a/_scss/sakura/_main.scss b/_scss/sakura/_main.scss
index 2bde68b..8e15541 100644
--- a/_scss/sakura/_main.scss
+++ b/_scss/sakura/_main.scss
@@ -111,6 +111,7 @@ img {
 
 pre {
   background-color: $color-bg-alt;
+  border: 1px solid $color-bg-alt;
   border-radius: 4px;
   display: block;
   overflow-x: auto;