diff --git a/scss/_variables.scss b/scss/_variables.scss
index 14ae016f52..c20af01c51 100644
--- a/scss/_variables.scss
+++ b/scss/_variables.scss
@@ -1148,7 +1148,6 @@ $nav-link-color:                    var(--#{$prefix}link-color) !default;
 $nav-link-hover-color:              var(--#{$prefix}link-hover-color) !default;
 $nav-link-transition:               color .15s ease-in-out, background-color .15s ease-in-out, border-color .15s ease-in-out !default;
 $nav-link-disabled-color:           var(--#{$prefix}secondary-color) !default;
-$nav-link-disabled-color:           $gray-600 !default;
 $nav-link-focus-box-shadow:         $focus-ring-box-shadow !default;
 
 $nav-tabs-border-color:             var(--#{$prefix}border-color) !default;