diff --git a/scripts/build-qemu-robot-docker.sh b/scripts/build-qemu-robot-docker.sh
index b1a3055..7de8bb1 100755
--- a/scripts/build-qemu-robot-docker.sh
+++ b/scripts/build-qemu-robot-docker.sh
@@ -145,7 +145,7 @@
         && chmod a+x /usr/local/bin/geckodriver
 
 RUN grep -q ${GROUPS[0]} /etc/group || groupadd -g ${GROUPS[0]} ${USER}
-RUN grep -q ${UID} /etc/passwd || useradd -d ${HOME} -m -u ${UID} -g ${GROUPS[0]} \
+RUN grep -q ${UID} /etc/passwd || useradd -d ${HOME} -l -m -u ${UID} -g ${GROUPS[0]} \
                     ${USER}
 USER ${USER}
 RUN /bin/bash