diff --git a/install/usr/share/swarmlab.io/sec/swarmlab-sec b/install/usr/share/swarmlab.io/sec/swarmlab-sec
index f595160..5fe8029 100755
--- a/install/usr/share/swarmlab.io/sec/swarmlab-sec
+++ b/install/usr/share/swarmlab.io/sec/swarmlab-sec
@@ -157,7 +157,7 @@ if [ -d "$Wdir/project" ]; then
 		 && rm -rf /usr/share/man \
 		 && rm -rf /usr/share/locale \ 
 		 && mkdir -p /var/run/sshd \
-                 && addgroup -S docker && adduser -S docker -G docker \
+                 && adduser -D -g '' docker \
 		 && echo 'root:$ROOT_PASSWORD' | chpasswd \
 		 && echo "export VISIBLE=now" >> /etc/profile \
 		 && mkdir -p /home/docker/project \
@@ -233,7 +233,7 @@ if [ "$Wdir" ==  "$HOME" ]; then
 		COPY ssh/ \${SSHDIR}/
 
 		RUN export DEBIAN_FRONTEND=noninteractive  \
-                 && addgroup -S docker && adduser -S docker -G docker \
+                 && adduser -D -g '' docker \
 		 && rm -rf /usr/share/doc \
 		 && rm -rf /usr/share/man \
 		 && rm -rf /usr/share/locale \