diff --git a/config.plist/penryn.md b/config.plist/penryn.md
index b8b8f832cc..75ad2f92aa 100644
--- a/config.plist/penryn.md
+++ b/config.plist/penryn.md
@@ -97,6 +97,7 @@ Settings relating to boot.efi patching and firmware fixes, depending where your
 | Quirk | Enabled | Comment |
 | :--- | :--- | :--- |
 | RebuildAppleMemoryMap | Yes | This is required to boot OS X 10.4 through 10.6 |
+| EnableWriteUnprotector | No | Must be disabled IF using RebuildAppleMemoryMap |
 
 :::
 ::: details More in-depth Info