diff --git a/src/uncategorized/BackwardsCompatibility.tw b/src/uncategorized/BackwardsCompatibility.tw
index d653d179f4f5559dbb8c3924a2bfbbaebbbc7304..664fa0506ea9d5445cff0023bfe8f037b6d80431 100644
--- a/src/uncategorized/BackwardsCompatibility.tw
+++ b/src/uncategorized/BackwardsCompatibility.tw
@@ -418,7 +418,10 @@
 	<</if>>
 <</if>>
 <<if ndef $NPCSexSupply>>
-	<<set $NPCSexSupply = {}>>
+	<<set $NPCSexSupply = {lowerClass: 3000}>>
+<</if>>
+<<if ndef $NPCSexSupply.lowerClass>>
+	<<set $NPCSexSupply.lowerClass = 3000>>
 <</if>>
 <<run PCDatatypeCleanup()>>
 <<run BCReserveInit()>>