diff --git a/assets/sass/_theme/design-system/nav.sass b/assets/sass/_theme/design-system/nav.sass
index 85bf719d0937e6417bb6c2c6b00b88952c00d794..5abd9de7ead9e47a04770d020c990ea56bfbcf53 100644
--- a/assets/sass/_theme/design-system/nav.sass
+++ b/assets/sass/_theme/design-system/nav.sass
@@ -107,7 +107,8 @@
             @if $header-dropdown-full
                 .dropdown-menu
                     &:not(.dropdown-languages)
-                        inset: 100% 0 auto 0
+                        @include inset(100%, 0, auto, 0)
+                        // inset: 100% 0 auto 0
                         padding-left: 0
                         padding-right: 0
                         padding-bottom: $spacing2