diff --git a/docs/user-guide/nginx-configuration/configmap.md b/docs/user-guide/nginx-configuration/configmap.md
index 5d76604b7..800d1a6d6 100755
--- a/docs/user-guide/nginx-configuration/configmap.md
+++ b/docs/user-guide/nginx-configuration/configmap.md
@@ -411,8 +411,8 @@ Example for json output:
 
 ```json
 
-log-format-upstream: '{"time": "$time_iso8601", "remote_addr": "$proxy_protocol_addr", "x-forward-for": "$proxy_add_x_forwarded_for", "request_id": "$req_id",
-  "remote_user": "$remote_user", "bytes_sent": $bytes_sent, "request_time": $request_time, "status":$status, "vhost": "$host", "request_proto": "$server_protocol",
+log-format-upstream: '{"time": "$time_iso8601", "remote_addr": "$proxy_protocol_addr", "x_forward_for": "$proxy_add_x_forwarded_for", "request_id": "$req_id",
+  "remote_user": "$remote_user", "bytes_sent": $bytes_sent, "request_time": $request_time, "status": $status, "vhost": "$host", "request_proto": "$server_protocol",
   "path": "$uri", "request_query": "$args", "request_length": $request_length, "duration": $request_time,"method": "$request_method", "http_referrer": "$http_referer",
   "http_user_agent": "$http_user_agent" }'
 ```