diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@ adds the following to the inventory:
 ---                   
 ### Installation
 
-You can install the package by uploading it to your CheckMK site and as site user run `mkp install inv_checkpoint_base.mkp`.
+You can install the package by uploading it to your CheckMK site and as site user run `mkp install inv_checkpoint_base.mkp`. On CMK 2.2.x use `mkp add inv_checkpoint_base.mkp` and `mkp enable inv_checkpoint_base.mkp`.
 
 
 In the Enterprise/Free edition of CheckMK you can use the GUI to install the package (_Setup_ -> _Extension Packages_ -> _Upload package_)