diff --git a/devices/surface-hub/on-premises-deployment-surface-hub-multi-forest.md b/devices/surface-hub/on-premises-deployment-surface-hub-multi-forest.md
index babce30d59..cae7e9639e 100644
--- a/devices/surface-hub/on-premises-deployment-surface-hub-multi-forest.md
+++ b/devices/surface-hub/on-premises-deployment-surface-hub-multi-forest.md
@@ -80,7 +80,7 @@ If you have a multi-forest on-premises deployment with Microsoft Exchange 2013 o
 6. You now need to change the room mailbox to a linked mailbox:
 
     ```PowerShell
-    $cred=Get-Credential AuthForest\LinkedRoomTest1
+    $cred=Get-Credential AuthForest\ADAdmin
     Set-mailbox -Alias LinkedRoomTest1 -LinkedMasterAccount AuthForest\LinkedRoomTest1 -LinkedDomainController AuthForest-4939.AuthForest.extest.contoso.com -Name LinkedRoomTest1 -LinkedCredential $cred -Identity LinkedRoomTest1
     ```