diff --git a/assets/scss/_sidebar-tree.scss b/assets/scss/_sidebar-tree.scss
index 3cb6bc16d1..1cdde0d493 100644
--- a/assets/scss/_sidebar-tree.scss
+++ b/assets/scss/_sidebar-tree.scss
@@ -78,7 +78,8 @@
   }
 
   a {
-    &:hover {
+    &:hover,
+    &:focus {
       color: $blue;
       text-decoration: underline;
     }