diff --git a/apps/protocols/http/mode/jsoncontent.pm b/apps/protocols/http/mode/jsoncontent.pm
index 9e9122b8c..196ef980f 100644
--- a/apps/protocols/http/mode/jsoncontent.pm
+++ b/apps/protocols/http/mode/jsoncontent.pm
@@ -273,7 +273,7 @@ __END__
 
 Check JSON webservice. Can send the json request with option '--data'. Example:
 centreon_plugins.pl --plugin=apps::protocols::http::plugin --mode=json-content --data='/home/user/request.json' --hostname='myws.site.com' --urlpath='/get/payment'
---lookup='$..expiration'
+--lookup='$..expiration' --header='Content-Type: application/json'
 
 JSON OPTIONS: