diff --git a/src/scss/_variables.scss b/src/scss/_variables.scss
index 2a04a8e59..3b43d0d62 100644
--- a/src/scss/_variables.scss
+++ b/src/scss/_variables.scss
@@ -549,6 +549,7 @@ $datagrid-padding: 1.5rem !default;
 $datagrid-item-width: 15rem !default;
 
 // Dropdown
+$dropdown-bg: var(--#{$prefix}bg-surface) !default;
 $dropdown-item-padding-x: .75rem !default;
 $dropdown-item-padding-y: .5rem !default;
 $dropdown-font-size: $font-size-base !default;