diff --git a/windows/win_iis_website.py b/windows/win_iis_website.py
index 71553401feb..4bbb3afe0d5 100644
--- a/windows/win_iis_website.py
+++ b/windows/win_iis_website.py
@@ -34,7 +34,7 @@ options:
     aliases: []
   site_id:
     description:
-      - Explicitly set the IIS ID for a site.
+      - Explicitly set the IIS numeric ID for a site. Note that this value cannot be changed after the website has been created.
     required: false
     default: null
   state: