diff --git a/docs/user-guide/nginx-configuration/configmap.md b/docs/user-guide/nginx-configuration/configmap.md
index aec821c2a..54449df7c 100755
--- a/docs/user-guide/nginx-configuration/configmap.md
+++ b/docs/user-guide/nginx-configuration/configmap.md
@@ -385,7 +385,7 @@ Sets the time, in seconds, that the browser should remember that this site is on
 
 ## hsts-preload
 
-Enables or disables the preload attribute in the HSTS feature (when it is enabled) dd
+Enables or disables the preload attribute in the HSTS feature (when it is enabled).
 
 ## keep-alive