diff --git a/README.md b/README.md
index 1ad2841..daa09dd 100644
--- a/README.md
+++ b/README.md
@@ -17,6 +17,7 @@ docker create
         -e OFFICE="o2k16-x64" \
         -e LANGUAGE="enu" \
         -e PARAMS="-includesp -includecpp -includedotnet -includewddefs8" \
+        -e ISO=no
         -e SLEEP=48h \     
         r0gger/docker-wsusoffline
 ```
@@ -74,8 +75,13 @@ Microsoft Security Essentials: localized installation files and virus definition
 `-includewddefs8`   
 Virus definition files for Windows 8 and higher. These are the same virus definition updates as for Microsoft Security Essentials, but without the localized installers.
 
+**ISO:**   
+`-e ISO=no`   
+Create an ISO after downloading wsus updates, yes or no.   
+Default: no (location ISO-folder: /client/iso).   
 
 **Changelog:**  
+Mar 20, 2018 - Add: Create an ISO after downloading wsus updates   
 Oct 7, 2017 - Multiple fixes   
 Aug 4, 2016 - Multiple fixes and simplify things  
 Apr 9, 2016 - Temp fix: hashdeep error wsusoffline 10.6.1