diff --git a/lectures/latexkurs.cls b/lectures/latexkurs.cls
index f20d277..7753d24 100644
--- a/lectures/latexkurs.cls
+++ b/lectures/latexkurs.cls
@@ -62,14 +62,6 @@
   \end{columns}
 }
 
-%%% lecture organization
-
-\usepackage{xparse}
-\DeclareDocumentCommand \Lecture { m m }{%
-  \lecture{#1}{#2}
-  \part{#1}
-  \include{#2}
-}
 
 \AtBeginSection{
   \setbeamertemplate{blocks}[rounded][shadow=true]