diff --git a/docs/config/transports/h2.md b/docs/config/transports/h2.md
index 1f43797..91fcf31 100644
--- a/docs/config/transports/h2.md
+++ b/docs/config/transports/h2.md
@@ -32,7 +32,7 @@ HTTP/2 内置多路复用，不建议使用 HTTP/2 时启用 mux.cool。
   "health_check_timeout": 15,
   "method": "PUT",
   "headers": {
-      "Header": ["value"]
+    "Header": ["value"]
   }
 }
 ```