diff --git a/content/2023/covert_technologies_1_foaming_NL.md b/content/2023/covert_technologies_1_foaming_NL.md
index e40a6c3d..fe2a4d82 100644
--- a/content/2023/covert_technologies_1_foaming_NL.md
+++ b/content/2023/covert_technologies_1_foaming_NL.md
@@ -5,7 +5,7 @@ Date: 2023-04-19
 Category: workshop
 Tags: drag, machine learning, workshop
 Slug: covert_technologies_1_foaming
-lang: en
+lang: nl
 event_start: 2023-06-04 19:00
 event_duration: 5h
 featured_image: /images/covert_technogies_foaming_poster_no_image.jpg