diff --git a/root/etc/cont-init.d/03-format-caddyfile b/root/etc/cont-init.d/03-format-caddyfile
new file mode 100644
index 00000000..52edb5ba
--- /dev/null
+++ b/root/etc/cont-init.d/03-format-caddyfile
@@ -0,0 +1,9 @@
+#!/command/with-contenv bash
+# shellcheck shell=bash
+
+set -e
+
+umask "${UMASK}"
+
+"/usr/local/bin/caddy" fmt "${CONFIG_DIR}/Caddyfile" --overwrite
+chown hotio:hotio "${CONFIG_DIR}/Caddyfile"