diff --git a/source/_talks/so-what-is-this-drupal-thing.md b/source/_talks/so-what-is-this-drupal-thing.md
index f5b6b491..5509eb36 100644
--- a/source/_talks/so-what-is-this-drupal-thing.md
+++ b/source/_talks/so-what-is-this-drupal-thing.md
@@ -4,7 +4,7 @@ vimeo:
     id: 49827006
 tags: [meetup, drupal, unified-diff]
 events:
-    - event: unified-diff
+    - event: unified_diff
       date: '2012-09-05'
 ---
 My very first talk, where I talk about Drupal, what it is and what it can do.