diff --git a/data/schedule.yaml b/data/schedule.yaml
index 8afa8e1..3338ba2 100644
--- a/data/schedule.yaml
+++ b/data/schedule.yaml
@@ -52,7 +52,6 @@ calendars:
         day: Wed
         start: '18:00'
         age: '2008 - 2010'
-        extern: false
         duration: 60
         class: DSTeens
       - title: Turnieraufbau Std
@@ -250,7 +249,7 @@ calendars:
       - title: Kindertanz 1
         day: Fri
         start: '15:30'
-        age: '2016 - 18'
+        age: '2016 - 2018'
         duration: 60
         class: Kinder
       - title: Kindertanz 2