diff --git a/gopher_tech.md b/gopher_tech.md
index 3b65f84d7d10a6f60f3d52fc14b961e890d52710..0459afdeb68c1936ff4e2dc9cf232053e15e88af 100644
--- a/gopher_tech.md
+++ b/gopher_tech.md
@@ -632,7 +632,7 @@
 | server_port         |               | key          |      | 客户端：对端端口；服务端：本地端口                           |
 | protocol            |               | key          |      | 协议族（IPv4、IPv6）                                         |
 | retran_packets      | tcp_abn(0x01) | Gauge        |      | total number of retrans                                      |
-| retran_ratio        | tcp_abn(0x01) | Gauge        |      | retran ratio                                                 |
+| retrans_ratio       | tcp_abn(0x01) | Gauge        |      | retran ratio                                                 |
 | backlog_drops       | tcp_abn(0x01) | Gauge        |      | drops   caused by backlog queue full                         |
 | sk_drops            | tcp_abn(0x01) | Counter      |      | Number of lost packets in the TCP protocol stack             |
 | lost_out            | tcp_abn(0x01) | Gauge        | segs | Number of lost segments estimated by TCP congestion          |