diff --git a/jupyter_book/_config.yml b/jupyter_book/_config.yml
index 8108bfb..008dbc5 100644
--- a/jupyter_book/_config.yml
+++ b/jupyter_book/_config.yml
@@ -19,4 +19,4 @@ sphinx:
   extra_extensions:
     - sphinx_jupyterbook_latex
   config:
-    language: German
+    language: de