diff --git a/inst/reveal.js-5.1.0/css/theme/source/ids.scss b/inst/reveal.js-5.1.0/css/theme/source/ids.scss
index 4c30260..e2ba974 100644
--- a/inst/reveal.js-5.1.0/css/theme/source/ids.scss
+++ b/inst/reveal.js-5.1.0/css/theme/source/ids.scss
@@ -155,19 +155,6 @@
   transition: opacity 800ms ease-in-out;
 }
 
-.title-frame .slide-number {
-  opacity: 0 !important;
-  transition: opacity 800ms ease-in-out;
-  display: none !important;
-}
-
-
-.title-frame .controls .controls-arrow {
-  opacity: 0 !important;
-  display: none !important;
-  z-index: 0;
-}
-
 .title-frame div.slide-background-content {
   text-align: right !important;
   background-image: url("https://corpora.ids-mannheim.de/slides/reveal.js.ids/images/Mitglied_WGL_transparent.svg") !important;
diff --git a/inst/reveal.js-5.1.0/dist/theme/ids.css b/inst/reveal.js-5.1.0/dist/theme/ids.css
index 7bdf039..bff321d 100644
--- a/inst/reveal.js-5.1.0/dist/theme/ids.css
+++ b/inst/reveal.js-5.1.0/dist/theme/ids.css
@@ -454,18 +454,6 @@
   transition: opacity 800ms ease-in-out;
 }
 
-.title-frame .slide-number {
-  opacity: 0 !important;
-  transition: opacity 800ms ease-in-out;
-  display: none !important;
-}
-
-.title-frame .controls .controls-arrow {
-  opacity: 0 !important;
-  display: none !important;
-  z-index: 0;
-}
-
 .title-frame div.slide-background-content {
   text-align: right !important;
   background-image: url("https://corpora.ids-mannheim.de/slides/reveal.js.ids/images/Mitglied_WGL_transparent.svg") !important;
diff --git a/inst/rmarkdown/templates/revealjs_presentation/resources/default.html b/inst/rmarkdown/templates/revealjs_presentation/resources/default.html
index ba1885c..e1d79f6 100644
--- a/inst/rmarkdown/templates/revealjs_presentation/resources/default.html
+++ b/inst/rmarkdown/templates/revealjs_presentation/resources/default.html
@@ -688,7 +688,7 @@
     }
 
     function makeFooterAndSlideNumberInvisibleOnTitlePage(event) {
-      if (event.indexh === 0 && ! Reveal.isPrintingPDF()) {
+      if (event.indexh === 0 && ! Reveal.isPrintView()) {
         Reveal.configure({ slideNumber: null });
         makeFooterInvisible();
       } else {