diff --git a/Dockerfile-server b/Dockerfile-server
index 038e599..8bde270 100644
--- a/Dockerfile-server
+++ b/Dockerfile-server
@@ -97,7 +97,7 @@ RUN chmod ug+x /usr/local/bin/runmqserver \
   && chown 1001:root /usr/local/bin/*mq* \
   && chmod ug+xs /usr/local/bin/chkmq* \
   && chown -R 1001:root /etc/mqm/* \
-  && install --directory --mode 0775 --owner 1001 --group root /run/runmqserver \
+  && install --directory --mode 2775 --owner 1001 --group root /run/runmqserver \
   && touch /run/termination-log \
   && chown 1001:root /run/termination-log \
   && chmod 0660 /run/termination-log
@@ -145,7 +145,7 @@ COPY incubating/mqadvanced-server-dev/web /etc/mqm/web
 RUN chown -R 1001:root /etc/mqm/* \
   && chmod -R g+w /etc/mqm/web \
   && chmod +x /usr/local/bin/runmq* \
-  && install --directory --mode 0775 --owner 1001 --group root /run/runmqdevserver
+  && install --directory --mode 2775 --owner 1001 --group root /run/runmqdevserver
 ENV MQ_ENABLE_EMBEDDED_WEB_SERVER=1 MQ_GENERATE_CERTIFICATE_HOSTNAME=localhost
 USER 1001
 ENTRYPOINT ["runmqdevserver"]
diff --git a/install-mq.sh b/install-mq.sh
index 466a791..d34c06b 100644
--- a/install-mq.sh
+++ b/install-mq.sh
@@ -69,16 +69,16 @@ ${INSTALLATION_DIR}/bin/mqlicense -accept
 $UBUNTU && echo "mq:$(dspmqver -b -f 2)" > /etc/debian_chroot
 
 # Create the mount point for volumes, ensuring MQ has permissions to all directories
-install --directory --mode 0775 --owner 1001 --group root /mnt
-install --directory --mode 0775 --owner 1001 --group root /mnt/mqm
-install --directory --mode 0775 --owner 1001 --group root /mnt/mqm/data
-install --directory --mode 0775 --owner 1001 --group root /mnt/mqm-log
-install --directory --mode 0775 --owner 1001 --group root /mnt/mqm-log/log
-install --directory --mode 0775 --owner 1001 --group root /mnt/mqm-data
-install --directory --mode 0775 --owner 1001 --group root /mnt/mqm-data/qmgrs
+install --directory --mode 2775 --owner 1001 --group root /mnt
+install --directory --mode 2775 --owner 1001 --group root /mnt/mqm
+install --directory --mode 2775 --owner 1001 --group root /mnt/mqm/data
+install --directory --mode 2775 --owner 1001 --group root /mnt/mqm-log
+install --directory --mode 2775 --owner 1001 --group root /mnt/mqm-log/log
+install --directory --mode 2775 --owner 1001 --group root /mnt/mqm-data
+install --directory --mode 2775 --owner 1001 --group root /mnt/mqm-data/qmgrs
 
 # Create the directory for MQ configuration files
-install --directory --mode 0775 --owner 1001 --group root /etc/mqm
+install --directory --mode 2775 --owner 1001 --group root /etc/mqm
 
 # Create the directory for MQ runtime files
 install --directory --mode 2775 --owner 1001 --group root /run/mqm