diff --git a/doc/configuration.txt b/doc/configuration.txt
index 9b4bf37..886e7c6 100644
--- a/doc/configuration.txt
+++ b/doc/configuration.txt
@@ -11665,7 +11665,7 @@
         stick-table type binary len 32 size 30k expire 30m
 
         acl clienthello req.ssl_hello_type 1
-        acl serverhello rep.ssl_hello_type 2
+        acl serverhello res.ssl_hello_type 2
 
         # use tcp content accepts to detects ssl client and server hello.
         tcp-request inspect-delay 5s