diff --git a/mods/cnc/system.yaml b/mods/cnc/system.yaml
index 0c2a99e47f..1ef77fd028 100644
--- a/mods/cnc/system.yaml
+++ b/mods/cnc/system.yaml
@@ -3,6 +3,7 @@ Player:
 		BuildSpeed: .4
 		LowPowerSlowdown: 3
 	PlaceBuilding:
+	TechTreeCache:
 	NukePower:
 		Image: atomicnh
 		ChargeTime: 13