diff --git a/toolkit/components/printing/content/print.html b/toolkit/components/printing/content/print.html
index 72ccab596c2f090d188f1d27278f68373e5b06be..541271c71a3df749826b7f5adbd55e76450bba8f 100644
--- a/toolkit/components/printing/content/print.html
+++ b/toolkit/components/printing/content/print.html
@@ -21,6 +21,7 @@
       type="module"
       src="chrome://global/content/elements/moz-button-group.mjs"
     ></script>
+    <script src="chrome://browser/content/zenThemeModifier.js"></script>
   </head>
 
   <body loading rendering>
