diff --git a/apps/showcase/assets/styles/layout/_sidebar.scss b/apps/showcase/assets/styles/layout/_sidebar.scss
index 0a9a32e07..1f3f4ab51 100644
--- a/apps/showcase/assets/styles/layout/_sidebar.scss
+++ b/apps/showcase/assets/styles/layout/_sidebar.scss
@@ -133,7 +133,7 @@
 
                             &.router-link-active {
                                 color: var(--primary-text-color);
-                                border-left-color: var(--primary-text-color);
+                                border-inline-start-color: var(--primary-text-color);
                             }
                         }