diff --git a/esxi-scripts/disable-system-vms.ps1 b/esxi-scripts/disable-system-vms.ps1
index 6595bc5b..18d9b817 100755
--- a/esxi-scripts/disable-system-vms.ps1
+++ b/esxi-scripts/disable-system-vms.ps1
@@ -4,6 +4,7 @@
 
 Connect-VIServer -Server $VCENTERHOST -Protocol https -User $VCENTERUSER -Password $VCENTERPASS | Out-Null
 
-Set-DrsRule -Rule "System VMs (S)" -Enabled $false;
+$vm = Get-VM "System VMs (S)"
+Set-DrsRule -Rule $affinityRule -VM $vm -Enabled $false;
 
 Disconnect-VIServer -Server $VCENTERHOST -Force –Confirm:$false
\ No newline at end of file