diff --git a/sermon-a4.css b/sermon-a4.css
index 227a0ac..52fab22 100644
--- a/sermon-a4.css
+++ b/sermon-a4.css
@@ -37,7 +37,7 @@ section {
 
 /* --- BOOKLET Printing MODUS ('class: booklet') --- */
 section.booklet {
-    font-size-booklet: var(--font-size-booklet);
+    font-size: var(--font-size-booklet);
     line-height: var(--line-height-booklet);
 }