diff --git a/theme/boost/scss/moodle/blocks.scss b/theme/boost/scss/moodle/blocks.scss
index ecc5688aa02..c7129e5c7be 100644
--- a/theme/boost/scss/moodle/blocks.scss
+++ b/theme/boost/scss/moodle/blocks.scss
@@ -49,7 +49,7 @@ $blocks-plus-gutter: $blocks-column-width + ( $grid-gutter-width / 2 );
 .region_main_settings_menu_proxy {
     width: 4rem;
     height: 2rem;
-    background-color: $card-bg;
+    background-color: $body-bg;
     margin-left: $card-spacer-x / 2;
     margin-bottom: $card-spacer-x / 2;
     border-bottom-left-radius: 0.5rem;