diff --git a/Docker/dynspec/chuser.sh b/Docker/dynspec/chuser.sh
index 9ac3603c1a072dffff02461e9e8e59b1833b7f4f..718ad2aa9c65a88323006d0b3ab9593559e72aeb 100755
--- a/Docker/dynspec/chuser.sh
+++ b/Docker/dynspec/chuser.sh
@@ -14,10 +14,6 @@ if [ -z "${HOME}" ]; then
   mkdir -p $HOME && cd $HOME
 fi
 
-# Add user to system
-fgrep -q ":x:${UID}:" /etc/passwd || echo "${USER}:x:${UID}:${UID}::${HOME}:/bin/bash" >> /etc/passwd
-fgrep -q ":x:${UID}:" /etc/group  || echo "${USER}:x:${UID}:" >> /etc/group
-
 # Set the environment
 [ -e /opt/bashrc ] && source /opt/bashrc
 
diff --git a/Docker/lofar-base/Dockerfile.tmpl b/Docker/lofar-base/Dockerfile.tmpl
index d9faff3d377224be3fd6380151564527665f1326..0ee75ac6f6d957d39d2f3244210c8f3e41c52a7b 100644
--- a/Docker/lofar-base/Dockerfile.tmpl
+++ b/Docker/lofar-base/Dockerfile.tmpl
@@ -44,8 +44,7 @@ RUN apt-get update && \
 # open security holes (allow smooth user switching, allow sudo)
 #
 RUN echo 'ALL ALL=(ALL) NOPASSWD:ALL' >> /etc/sudoers && \
-    sed -i 's/requiretty/!requiretty/g' /etc/sudoers && \
-    chmod a+rw /etc/group /etc/passwd
+    sed -i 's/requiretty/!requiretty/g' /etc/sudoers 
 
 #
 # setup install dir
diff --git a/Docker/lofar-base/chuser.sh b/Docker/lofar-base/chuser.sh
index 46872545a87da2e2516bc3ab2e443644c8ee6281..4ba563587e590259db30f8cd5e60edfb9e07609e 100755
--- a/Docker/lofar-base/chuser.sh
+++ b/Docker/lofar-base/chuser.sh
@@ -11,10 +11,6 @@ if [ -z "${HOME}" ]; then
   mkdir -p $HOME && cd $HOME
 fi
 
-# Add user to system
-fgrep -q ":x:${UID}:" /etc/passwd || echo "${USER}:x:${UID}:${UID}::${HOME}:/bin/bash" >> /etc/passwd
-fgrep -q ":x:${UID}:" /etc/group  || echo "${USER}:x:${UID}:" >> /etc/group
-
 # Set the environment
 [ -e /opt/bashrc ] && source /opt/bashrc