diff --git a/docker/caddy/conf/Caddyfile b/docker/caddy/conf/Caddyfile
index 84aee0d..265a544 100644
--- a/docker/caddy/conf/Caddyfile
+++ b/docker/caddy/conf/Caddyfile
@@ -6,7 +6,7 @@ https://ru.homyk.space {
 
     # --- API ---
     handle_path /api/* {
-        reverse_proxy backend:${PORT}
+        reverse_proxy backend:{$PORT}
     }
 
     # --- Frontend ---