diff --git a/lectures/latexkurs.cls b/lectures/latexkurs.cls
index 0494a37..ab70615 100644
--- a/lectures/latexkurs.cls
+++ b/lectures/latexkurs.cls
@@ -60,7 +60,6 @@
 \setbeamercolor{titlelike}{parent=palette primary,bg=fsfwgreen}
 \setbeamercolor{frametitle}{bg=fsfwblue,fg=white}
 \setbeamerfont{frametitle}{series=\bfseries}
-\setbeamercolor{frametitle right}{bg=fsfwgray!60!white}
 
 \setbeamercolor*{separation line}{}
 \setbeamercolor*{fine separation line}{}