diff --git a/stylesheets/nav.scss b/stylesheets/nav.scss
index 32afe1fe83b1..37444ae48c9a 100644
--- a/stylesheets/nav.scss
+++ b/stylesheets/nav.scss
@@ -22,7 +22,7 @@ header summary,
 }
 
 .nav-mobile-dropdown {
-  @media (max-width: $width-md) {
+  @media (max-width: $width-md - 1) {
     display: none;
     visibility: hidden;
   }