diff --git a/web/styles/pygments.css b/web/styles/pygments.css
index e2860f2296..94809ab2b2 100644
--- a/web/styles/pygments.css
+++ b/web/styles/pygments.css
@@ -500,7 +500,9 @@
 }
 
 @media not screen {
-    @extend %light-theme;
+    :root {
+        @extend %light-theme;
+    }
 }
 
 @media screen {