diff --git a/slides/223015c/01-geschichte-grundlagen-html.md b/slides/223015c/01-geschichte-grundlagen-html.md
index 6b7cd39..7a7094d 100644
--- a/slides/223015c/01-geschichte-grundlagen-html.md
+++ b/slides/223015c/01-geschichte-grundlagen-html.md
@@ -1792,7 +1792,7 @@ Automatisierte Tests finden nur ~30% der Barrierefreiheitsprobleme. Der Rest erf
 <!-- _footer: '' -->
 <!-- _paginate: false -->
 
-![bg fit](./assets/wave-tab-order.png)
+![bg fit](./assets/wave-tab-order-qr.png)
 
 <!--
 WAVE Tab-Reihenfolge: visualisiert DOM-Reihenfolge als Tab-Pfad.
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diff --git a/slides/223015c/assets/wave-tab-order-qr.png b/slides/223015c/assets/wave-tab-order-qr.png
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