diff --git a/src/browser/base/content/zen-styles/zen-compact-mode.css b/src/browser/base/content/zen-styles/zen-compact-mode.css
index 0ac0ca78..e83ff0a1 100644
--- a/src/browser/base/content/zen-styles/zen-compact-mode.css
+++ b/src/browser/base/content/zen-styles/zen-compact-mode.css
@@ -20,7 +20,7 @@
     transform: translateX(calc(-100% + (var(--zen-compact-toolbox-margin-single) / 2)));
     opacity: 0;
     line-height: 0;
-    z-index: 1;
+    z-index: 2;
     height: 100%;
     margin: 0;
     padding: var(--zen-compact-toolbox-margin) !important;