diff --git a/Dockerfile b/Dockerfile
index 85a2413..2f008c7 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -7,5 +7,5 @@ WORKDIR /var/www/html/public
 COPY --chown=www-data:www-data ./data/src/ /var/www/html/public/src
 COPY --chown=www-data:www-data ./data/update.php /var/www/html/public
 COPY --chown=www-data:www-data ./data/.env.dist /var/www/html/public/.env
-RUN sed -i 's|listen \[::\]:8080 default_server;|# \0|' /etc/nginx/site-opts.d/http.conf
+RUN sed -i "s|listen \[::\]:8080 default_server;|# \0|" /etc/nginx/site-opts.d/http.conf.template
 HEALTHCHECK --interval= --timeout=5s --start-period=10s CMD curl --insecure --silent --location --show-error --fail http://localhost:8080$HEALTHCHECK_PATH || exit 1