diff --git a/Dockerfile b/Dockerfile
index 031d623..0330511 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
 #FROM ubuntu:18.04
 #FROM nvidia/opengl:1.2-glvnd-runtime-ubuntu18.04 
 FROM nvidia/vulkan:1.1.121-cuda-10.1--ubuntu18.04
-
+LABEL maintainer="ikko@hoaei.ac.jp"
 RUN sed -i 's#http://archive.ubuntu.com/ubuntu/#mirror://mirrors.ubuntu.com/mirrors.txt#' /etc/apt/sources.list;
 
 ARG CARLA_VERSION_FULL=0.9.10.1
diff --git a/build.sh b/build.sh
index c556400..812ea6d 100755
--- a/build.sh
+++ b/build.sh
@@ -6,4 +6,4 @@
   wget https://carla-releases.s3.eu-west-3.amazonaws.com/Linux/AdditionalMaps_0.9.10.1.tar.gz
 fi
 
-docker build -t carla0910a . && \
+docker build -t carla0910a . 
diff --git a/screenshot.png b/screenshot.png
deleted file mode 100644
index 67e2c57..0000000
--- a/screenshot.png
+++ /dev/null
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