diff --git a/assets/sass/_theme/design-system/header.sass b/assets/sass/_theme/design-system/header.sass
index 24c5bad0ebbf1f2ef80bc1922970d76941e6eeaa..8ad6a3b925be61693d230f1247d5d505d3539157 100644
--- a/assets/sass/_theme/design-system/header.sass
+++ b/assets/sass/_theme/design-system/header.sass
@@ -9,6 +9,7 @@ header[role="banner"]
     width: 100%
     z-index: $zindex-header
     @include media-breakpoint-down(desktop)
+        border-bottom: 0
         width: 100%
     .dropdown-menu
         transition: background $header-sticky-transition