diff --git a/logging.rst b/logging.rst
index 186591dfe91..af5b72f2ba9 100644
--- a/logging.rst
+++ b/logging.rst
@@ -315,7 +315,7 @@ option of your handler to ``rotating_file``:
                 https://symfony.com/schema/dic/monolog/monolog-1.0.xsd">
 
             <monolog:config>
-                <!-- "max_files": max number of log files to keep
+                <!-- "max-files": max number of log files to keep
                      defaults to zero, which means infinite files -->
                 <monolog:handler name="main"
                     type="rotating_file"