diff --git a/docs/developer-docs/latest/guides/slug.md b/docs/developer-docs/latest/guides/slug.md
index 4c588040fb..611ad18e6c 100644
--- a/docs/developer-docs/latest/guides/slug.md
+++ b/docs/developer-docs/latest/guides/slug.md
@@ -78,7 +78,7 @@ module.exports = {
     }
   },
   async beforeUpdate(event) {
-    if (event.params.data.Titel) {
+    if (event.params.data.title) {
       event.params.data.slug = slugify(event.params.data.title, { lower: true });
     }
   },