diff --git a/docs/manual/CoreTasks/mkdir.html b/docs/manual/CoreTasks/mkdir.html
index 853dd9d60..5d945c0f1 100644
--- a/docs/manual/CoreTasks/mkdir.html
+++ b/docs/manual/CoreTasks/mkdir.html
@@ -27,7 +27,7 @@
 <h2><a name="mkdir">Mkdir</a></h2>
 <h3>Description</h3>
 <p>Creates a directory. Also non-existent parent directories are created, when
-necessary.</p>
+necessary. Does nothing if the directory already exist.</p>
 <h3>Parameters</h3>
 <table border="1" cellpadding="2" cellspacing="0">
   <tr>
@@ -50,4 +50,3 @@ necessary.</p>
 
 </body>
 </html>
-