diff --git a/windows/security/identity-protection/access-control/active-directory-security-groups.md b/windows/security/identity-protection/access-control/active-directory-security-groups.md
index 35606ee96a..f191ffdf77 100644
--- a/windows/security/identity-protection/access-control/active-directory-security-groups.md
+++ b/windows/security/identity-protection/access-control/active-directory-security-groups.md
@@ -1490,7 +1490,7 @@ This security group has not changed since Windows Server 2008.
 <tbody>
 <tr class="odd">
 <td><p>Well-Known SID/RID</p></td>
-<td><p>S-1-5-&lt;domain&gt;-512</p></td>
+<td><p>S-1-5-21-&lt;domain&gt;-512</p></td>
 </tr>
 <tr class="even">
 <td><p>Type</p></td>