diff --git a/src/browser/base/content/zen-styles/zen-browser-ui.css b/src/browser/base/content/zen-styles/zen-browser-ui.css
index c3c36d030..c429efdb2 100644
--- a/src/browser/base/content/zen-styles/zen-browser-ui.css
+++ b/src/browser/base/content/zen-styles/zen-browser-ui.css
@@ -60,7 +60,7 @@
     }
   }
 
-  @media not (-moz-windows-accent-color-in-titlebar) {
+  @media (not (-moz-windows-accent-color-in-titlebar)) and (not (-moz-windows-mica)) {
     transition: color var(--inactive-window-transition);
     color: var(--toolbox-non-lwt-textcolor-inactive);
     &:-moz-window-inactive {