diff --git a/sys/winnt/defaults.nh b/sys/winnt/defaults.nh
index 9c6964e1c..562f2267d 100644
--- a/sys/winnt/defaults.nh
+++ b/sys/winnt/defaults.nh
@@ -42,6 +42,7 @@ OPTIONS=symset:IBMGraphics_2,roguesymset:RogueEpyx
 #OPTIONS=nolegacy,noverbose
 #OPTIONS=menustyle:traditional
 #OPTIONS=hilite_status:hitpoints/30%/bright-magenta/normal
+#OPTIONS=perm_invent
 
 # Turn off all status hilites.
 #OPTIONS=!statushilites