diff --git a/custom/conf/app.example.ini b/custom/conf/app.example.ini
index 85b6dd193b29b..5d35269fd680d 100644
--- a/custom/conf/app.example.ini
+++ b/custom/conf/app.example.ini
@@ -580,7 +580,7 @@ ROUTER = console
 ;;
 ;; Print request id which parsed from request headers in access log, when access log is enabled.
 ;; * E.g:
-;; * In reuqest Header:         X-Request-ID: test-id-123
+;; * In request Header:         X-Request-ID: test-id-123
 ;; * Configuration in app.ini:  REQUEST_ID_HEADERS = X-Request-ID
 ;; * Print in log:              127.0.0.1:58384 - - [14/Feb/2023:16:33:51 +0800] "test-id-123"
 ;;