diff --git a/app/javascript/styles/full-dark/variables.scss b/app/javascript/styles/full-dark/variables.scss
index 6cedec7df9..1720d716fe 100644
--- a/app/javascript/styles/full-dark/variables.scss
+++ b/app/javascript/styles/full-dark/variables.scss
@@ -1,11 +1,14 @@
 $classic-base-color: #282c37; // Midnight Express
 $classic-secondary-color: #d9e1e8; // Pattens Blue
 
-// Variables for defaults in UI
-$simple-background-color: $classic-base-color !default;
+@use '../mastodon/variables' with (
+  // Variables for defaults in UI
+  $simple-background-color: $classic-base-color,
 
-// Tell UI to use selected colors
-$ui-base-lighter-color: #969fbc !default; // Lighter darkest
+  // Tell UI to use selected colors
+  $ui-base-lighter-color: #969fbc,
 
-// For texts on inverted backgrounds
-$inverted-text-color: $classic-secondary-color !default;
+  // Lighter darkest
+  // For texts on inverted backgrounds
+  $inverted-text-color: $classic-secondary-color
+);