diff --git a/Seminar.md b/Seminar.md
index 78f0040..280aa26 100644
--- a/Seminar.md
+++ b/Seminar.md
@@ -12,7 +12,7 @@
 
 weitere Themen:
 - Swift
-- Gamecenter
+- Gamecenter | Simon Kellner
 - Xcode
 - SpriteKit
 - Gitlab