diff --git a/Dockerfile b/Dockerfile
index 8a1b373..441eeec 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -6,7 +6,7 @@ RUN apt-get install -y librsvg2-bin
 
 # and lilypond to render notes/songs
 RUN apt-get install -y lilypond
-
+RUN apt-get install -y ffmpeg
 # enable postfix to be able to send mails
 RUN /opt/docker/bin/usr-bin/docker-service-enable postfix
 RUN mkfifo /var/spool/postfix/public/pickup