diff --git a/assets/css/app.scss b/assets/css/app.scss
index 6cab7ab..54c30ed 100644
--- a/assets/css/app.scss
+++ b/assets/css/app.scss
@@ -21,6 +21,7 @@
 
 @mixin make-pre {
     padding: 10px;
+    border-radius: 0;
     border: 1px solid $color-code-border;
     overflow: auto;
     background: $color-code-background;