diff --git a/Dockerfile b/Dockerfile
index fecd508..382e6a4 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,6 @@
 ARG ARCH=amd64
 FROM docker.io/${ARCH}/debian:buster
+ARG ARCH
 ARG NCPUS=1
 
 RUN apt-get update && apt-get install -y \
@@ -43,10 +44,6 @@ RUN git clone -q --depth=1 https://github.com/renatahodovan/fuzzinator.git ./fuz
 COPY setup.sh /tmp/
 ENV JSCFUZZ=${FUZZDIR}
 
-RUN echo "fuzzdir: ${FUZZDIR}"
-RUN echo "ncpus: ${NCPUS}"
-RUN echo "arch: ${ARCH}"
-
 RUN /tmp/setup.sh ${FUZZDIR} ${NCPUS} ${ARCH}
 
 EXPOSE 8080