diff --git a/docker/docker-entrypoint.sh b/docker/docker-entrypoint.sh
index 53e52ef..8f1bd3f 100755
--- a/docker/docker-entrypoint.sh
+++ b/docker/docker-entrypoint.sh
@@ -13,7 +13,12 @@ if [[ -z ${SUPERUSER_NAME} || -z ${SUPERUSER_EMAIL} || -z ${SUPERUSER_PASSWORD}
         SUPERUSER_PASSWORD='admin'
         echo "Using defaults: Username: ${SUPERUSER_NAME}, E-Mail: ${SUPERUSER_EMAIL}, Password: ${SUPERUSER_PASSWORD}"
 fi
-echo "from django.contrib.auth.models import User; User.objects.create_superuser('${SUPERUSER_NAME}', '${SUPERUSER_EMAIL}', '${SUPERUSER_PASSWORD}')" | python /opt/netbox/netbox/manage.py shell
+
+python netbox/manage.py shell --plain << END
+from django.contrib.auth.models import User
+if not User.objects.filter(username='${SUPERUSER_NAME}'):
+    User.objects.create_superuser('${SUPERUSER_NAME}', '${SUPERUSER_EMAIL}', '${SUPERUSER_PASSWORD}')
+END
 
 # copy static files
 /opt/netbox/netbox/manage.py collectstatic --no-input