diff --git a/src/browser/base/content/zen-styles/zen-tabs/vertical-tabs.css b/src/browser/base/content/zen-styles/zen-tabs/vertical-tabs.css
index 2275df01f..fb18feae9 100644
--- a/src/browser/base/content/zen-styles/zen-tabs/vertical-tabs.css
+++ b/src/browser/base/content/zen-styles/zen-tabs/vertical-tabs.css
@@ -925,7 +925,7 @@
     box-shadow: 0 0 1px 1px light-dark(rgba(0, 0, 0, 0.07), rgba(0, 0, 0, 0.1));
   }
 
-  &:not([selected]) .tab-background {
+  &:not([selected], [multiselected="true"]) .tab-background {
     background: var(--zen-toolbar-element-bg);
     backdrop-filter: none !important;
     border: 1px solid light-dark(transparent, rgba(255, 255, 255, 0.05));