diff --git a/data/theme/gnome-shell-sass/widgets/_calendar.scss b/data/theme/gnome-shell-sass/widgets/_calendar.scss
index fa1e75fe8..e22e70618 100644
--- a/data/theme/gnome-shell-sass/widgets/_calendar.scss
+++ b/data/theme/gnome-shell-sass/widgets/_calendar.scss
@@ -64,9 +64,9 @@
 }
 
 .events-section-title {
+  @include notification_bubble($flat: true);
   color: desaturate(darken($fg_color,40%), 10%);
   font-weight: bold;
-  border-radius: 4px;
   padding: .4em;
 }