diff --git a/components/app_bar/theme.css b/components/app_bar/theme.css
index 177b6543..8b9282b4 100644
--- a/components/app_bar/theme.css
+++ b/components/app_bar/theme.css
@@ -21,7 +21,6 @@
 
   &:not(.flat) {
     box-shadow: var(--shadow-4p);
-    z-index: var(--z-index-high);
   }
 
   &.fixed {