diff --git a/Dockerfile b/Dockerfile
index 2eb8f74..3e938a0 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -8,5 +8,7 @@ RUN apk update && \
   rm -rf \
     /var/cache/apk/*
 
-CMD ["/usr/sbin/caddy", "-port", "80", "-root", "/srv/www"]
-ADD public /srv/www
+CMD ["/usr/sbin/caddy", "-conf", "/etc/caddy/caddy.conf"]
+
+COPY docker/caddy.conf /etc/caddy/caddy.conf
+COPY public /srv/www
diff --git a/docker/caddy.conf b/docker/caddy.conf
new file mode 100644
index 0000000..9d1d61a
--- /dev/null
+++ b/docker/caddy.conf
@@ -0,0 +1,7 @@
+:80 {
+  root /srv/www
+
+  errors {
+    404 /404.html
+  }
+}