diff --git a/public/home/chapters/01_gestaltung.html b/public/home/chapters/01_gestaltung.html
index b9b14dc079bb57f98164a118474c5e6aa8fe0534..cf3f581a33d29750055fd8990f024e3de471ddd1 100644
--- a/public/home/chapters/01_gestaltung.html
+++ b/public/home/chapters/01_gestaltung.html
@@ -1,5 +1,5 @@
<!DOCTYPE html>
-<html>
+<html lang="de">
<head>
<meta charset="utf-8">