diff --git a/web/hugo.yaml b/web/hugo.yaml
index 3dabff0..8ba74be 100644
--- a/web/hugo.yaml
+++ b/web/hugo.yaml
@@ -10,6 +10,7 @@ buildExpired: false
 enableEmoji: true
 pygmentsUseClasses: true
 mainsections: ["posts", "papermod"]
+defaultContentLanguage: "cs"
 
 minify:
   disableXML: true