diff --git a/app/assets/stylesheets/navigation/top_menu.scss b/app/assets/stylesheets/navigation/top_menu.scss
index b595d1b7f..ffee447b8 100644
--- a/app/assets/stylesheets/navigation/top_menu.scss
+++ b/app/assets/stylesheets/navigation/top_menu.scss
@@ -68,7 +68,7 @@
   }
 
   .dropdown-menu {
-    top: calc(var(--top-navigation-height) - 0.5em);
+    top: calc(50px - 0.5em);
   }
 
   .dropdown-menu li a {